diff --git a/Pipfile.lock b/Pipfile.lock
index d5151f7..eea90cf 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -3,6 +3,7 @@
         "hash": {
             "sha256": "77d9453222dda519832b3e9753aa60167a725fad64a3e69f11373e375ef71c23"
         },
+        "pipfile-spec": 6,
         "requires": {},
         "sources": [
             {
@@ -13,124 +14,428 @@
     },
     "default": {
         "flask": {
+            "hashes": [
+                "sha256:4c83829ff83d408b5e1d4995472265411d2c414112298f2eb4b359d9e4563373"
+            ],
             "version": "==0.10.1"
         },
         "itsdangerous": {
-            "version": "==0.24"
+            "hashes": [
+                "sha256:5174094b9637652bdb841a3029700391451bd092ba3db90600dea710ba28e97c",
+                "sha256:9e724d68fc22902a1435351f84c3fb8623f303fffcc566a4cb952df8c572cff0"
+            ],
+            "version": "==2.0.1"
         },
         "jinja2": {
-            "version": "==2.9.6"
+            "hashes": [
+                "sha256:1f06f2da51e7b56b8f238affdd6b4e2c61e39598a378cc49345bc1bd42a978a4",
+                "sha256:703f484b47a6af502e743c9122595cc812b0271f661722403114f71a79d0f5a4"
+            ],
+            "version": "==3.0.1"
         },
         "markdown": {
+            "hashes": [
+                "sha256:73af797238b95768b3a9b6fe6270e250e5c09d988b8e5b223fd5efa4e06faf81"
+            ],
             "version": "==2.6.9"
         },
         "markupsafe": {
-            "version": "==1.0"
+            "hashes": [
+                "sha256:01a9b8ea66f1658938f65b93a85ebe8bc016e6769611be228d797c9d998dd298",
+                "sha256:023cb26ec21ece8dc3907c0e8320058b2e0cb3c55cf9564da612bc325bed5e64",
+                "sha256:0446679737af14f45767963a1a9ef7620189912317d095f2d9ffa183a4d25d2b",
+                "sha256:0717a7390a68be14b8c793ba258e075c6f4ca819f15edfc2a3a027c823718567",
+                "sha256:0955295dd5eec6cb6cc2fe1698f4c6d84af2e92de33fbcac4111913cd100a6ff",
+                "sha256:10f82115e21dc0dfec9ab5c0223652f7197feb168c940f3ef61563fc2d6beb74",
+                "sha256:1d609f577dc6e1aa17d746f8bd3c31aa4d258f4070d61b2aa5c4166c1539de35",
+                "sha256:2ef54abee730b502252bcdf31b10dacb0a416229b72c18b19e24a4509f273d26",
+                "sha256:3c112550557578c26af18a1ccc9e090bfe03832ae994343cfdacd287db6a6ae7",
+                "sha256:47ab1e7b91c098ab893b828deafa1203de86d0bc6ab587b160f78fe6c4011f75",
+                "sha256:49e3ceeabbfb9d66c3aef5af3a60cc43b85c33df25ce03d0031a608b0a8b2e3f",
+                "sha256:4efca8f86c54b22348a5467704e3fec767b2db12fc39c6d963168ab1d3fc9135",
+                "sha256:53edb4da6925ad13c07b6d26c2a852bd81e364f95301c66e930ab2aef5b5ddd8",
+                "sha256:594c67807fb16238b30c44bdf74f36c02cdf22d1c8cda91ef8a0ed8dabf5620a",
+                "sha256:611d1ad9a4288cf3e3c16014564df047fe08410e628f89805e475368bd304914",
+                "sha256:6557b31b5e2c9ddf0de32a691f2312a32f77cd7681d8af66c2692efdbef84c18",
+                "sha256:693ce3f9e70a6cf7d2fb9e6c9d8b204b6b39897a2c4a1aa65728d5ac97dcc1d8",
+                "sha256:6a7fae0dd14cf60ad5ff42baa2e95727c3d81ded453457771d02b7d2b3f9c0c2",
+                "sha256:6c4ca60fa24e85fe25b912b01e62cb969d69a23a5d5867682dd3e80b5b02581d",
+                "sha256:7d91275b0245b1da4d4cfa07e0faedd5b0812efc15b702576d103293e252af1b",
+                "sha256:905fec760bd2fa1388bb5b489ee8ee5f7291d692638ea5f67982d968366bef9f",
+                "sha256:97383d78eb34da7e1fa37dd273c20ad4320929af65d156e35a5e2d89566d9dfb",
+                "sha256:984d76483eb32f1bcb536dc27e4ad56bba4baa70be32fa87152832cdd9db0833",
+                "sha256:a30e67a65b53ea0a5e62fe23682cfe22712e01f453b95233b25502f7c61cb415",
+                "sha256:ab3ef638ace319fa26553db0624c4699e31a28bb2a835c5faca8f8acf6a5a902",
+                "sha256:b2f4bf27480f5e5e8ce285a8c8fd176c0b03e93dcc6646477d4630e83440c6a9",
+                "sha256:b7f2d075102dc8c794cbde1947378051c4e5180d52d276987b8d28a3bd58c17d",
+                "sha256:be98f628055368795d818ebf93da628541e10b75b41c559fdf36d104c5787066",
+                "sha256:d7f9850398e85aba693bb640262d3611788b1f29a79f0c93c565694658f4071f",
+                "sha256:f5653a225f31e113b152e56f154ccbe59eeb1c7487b39b9d9f9cdb58e6c79dc5",
+                "sha256:f826e31d18b516f653fe296d967d700fddad5901ae07c622bb3705955e1faa94",
+                "sha256:f8ba0e8349a38d3001fae7eadded3f6606f0da5d748ee53cc1dab1d6527b9509",
+                "sha256:f9081981fe268bd86831e5c75f7de206ef275defcb82bc70740ae6dc507aee51",
+                "sha256:fa130dd50c57d53368c9d59395cb5526eda596d3ffe36666cd81a44d56e48872"
+            ],
+            "version": "==2.0.1"
         },
         "werkzeug": {
-            "version": "==0.12.2"
+            "hashes": [
+                "sha256:1de1db30d010ff1af14a009224ec49ab2329ad2cde454c8a708130642d579c42",
+                "sha256:6c1ec500dcdba0baa27600f6a22f6333d8b662d22027ff9f6202e3367413caa8"
+            ],
+            "version": "==2.0.1"
         }
     },
     "develop": {
-        "backports-abc": {
-            "version": "==0.5"
-        },
         "backports.shutil-get-terminal-size": {
+            "hashes": [
+                "sha256:0975ba55054c15e346944b38956a4c9cbee9009391e41b86c68990effb8c1f64",
+                "sha256:713e7a8228ae80341c70586d1cc0a8caa5207346927e23d09dcbcaf18eadec80"
+            ],
             "version": "==1.0.0"
         },
         "certifi": {
-            "version": "==2017.7.27.1"
+            "hashes": [
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+                "sha256:50b1e4f8446b06f41be7dd6338db18e0990601dce795c2b1686458aa7e8fa7d8"
+            ],
+            "version": "==2021.5.30"
         },
         "chardet": {
-            "version": "==3.0.4"
+            "hashes": [
+                "sha256:0d6f53a15db4120f2b08c94f11e7d93d2c911ee118b6b30a04ec3ee8310179fa",
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+            ],
+            "version": "==4.0.0"
         },
         "colorama": {
-            "version": "==0.3.9"
+            "hashes": [
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+                "sha256:9f47eda37229f68eee03b24b9748937c7dc3868f906e8ba69fbcbdd3bc5dc3e2"
+            ],
+            "version": "==0.4.4"
         },
         "coverage": {
+            "hashes": [
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+                "sha256:5dea90ed140e7fa9bc00463313f9bc4a6e6aff297b4969615e7a688615c4c4d2",
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+                "sha256:9681efc2d310cfc53863cc6f63e88ebe7a48124550fa822147996cb09390b6ab",
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+                "sha256:a5ed27ad3e8420b2d6b625dcbd3e59488c14ccc06030167bcf14ffb0f4189b77",
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+                "sha256:c5a205b4da3c624f5119dc4d84240789b5906bb8468902ec22dcc4aad8aa4638",
+                "sha256:c820a533a943ebc860acc0ce6a00dd36e0fdf2c6f619ff8225755169428c5fa2",
+                "sha256:d7b70b7b4eb14d0753d33253fe4f121ca99102612e2719f0993607deb30c6f33",
+                "sha256:dfb011587e2b7299112f08a2a60d2601706aac9abde37aa1177ea825adaed923",
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         "coverage.space": {
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         "docopt": {
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         "docutils": {
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         "flake8": {
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         "ghp-import": {
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         "jinja2": {
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+            "hashes": [
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+            "version": "==3.0.1"
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         "livereload": {
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+            "hashes": [
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+            ],
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+            "hashes": [
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+                "sha256:6c4ca60fa24e85fe25b912b01e62cb969d69a23a5d5867682dd3e80b5b02581d",
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+                "sha256:b2f4bf27480f5e5e8ce285a8c8fd176c0b03e93dcc6646477d4630e83440c6a9",
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+                "sha256:be98f628055368795d818ebf93da628541e10b75b41c559fdf36d104c5787066",
+                "sha256:d7f9850398e85aba693bb640262d3611788b1f29a79f0c93c565694658f4071f",
+                "sha256:f5653a225f31e113b152e56f154ccbe59eeb1c7487b39b9d9f9cdb58e6c79dc5",
+                "sha256:f826e31d18b516f653fe296d967d700fddad5901ae07c622bb3705955e1faa94",
+                "sha256:f8ba0e8349a38d3001fae7eadded3f6606f0da5d748ee53cc1dab1d6527b9509",
+                "sha256:f9081981fe268bd86831e5c75f7de206ef275defcb82bc70740ae6dc507aee51",
+                "sha256:fa130dd50c57d53368c9d59395cb5526eda596d3ffe36666cd81a44d56e48872"
+            ],
+            "version": "==2.0.1"
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         "mccabe": {
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+                "sha256:f9b58bf366c1506dcd6117b33e5c4874746f0de859c9c7cab8b516cb6be1d22e"
+            ],
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-        "mkdocs": "==0.12",
+        "mkdocs": {
+            "hashes": [
+                "sha256:e567aa04d84fe52b9e2df45825016a0ff1930dd83dfb5abde5fb61b781535445"
+            ],
+            "version": "==0.12"
+        },
         "nose": {
+            "hashes": [
+                "sha256:9ff7c6cc443f8c51994b34a667bbcf45afd6d945be7477b52e97516fd17c53ac",
+                "sha256:dadcddc0aefbf99eea214e0f1232b94f2fa9bd98fa8353711dacb112bfcbbb2a",
+                "sha256:f1bffef9cbc82628f6e7d7b40d7e255aefaa1adb6a1b1d26c69a8b79e6208a98"
+            ],
             "version": "==1.3.7"
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         "pkginfo": {
-            "version": "==1.4.1"
+            "hashes": [
+                "sha256:029a70cb45c6171c329dfc890cde0879f8c52d6f3922794796e06f577bb03db4",
+                "sha256:9fdbea6495622e022cc72c2e5e1b735218e4ffb2a2a69cde2694a6c1f16afb75"
+            ],
+            "version": "==1.7.0"
         },
         "pycodestyle": {
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