Update dev-dependencies

Author: wooorm

package.json

@@ -31,21 +31,21 @@
     "index.js"
   ],
   "dependencies": {
-    "xtend": "^4.0.1"
+    "xtend": "^4.0.0"
   },
   "devDependencies": {
     "browserify": "^16.0.0",
-    "deepmerge": "^3.0.0",
-    "hast-util-to-html": "^5.0.0",
+    "deepmerge": "^4.0.0",
+    "hast-util-to-html": "^7.0.0",
     "hastscript": "^5.0.0",
-    "nyc": "^14.0.0",
+    "nyc": "^15.0.0",
     "prettier": "^1.0.0",
-    "remark-cli": "^6.0.0",
-    "remark-preset-wooorm": "^5.0.0",
+    "remark-cli": "^7.0.0",
+    "remark-preset-wooorm": "^6.0.0",
     "tape": "^4.0.0",
     "tinyify": "^2.0.0",
-    "unist-builder": "^1.0.0",
-    "xo": "^0.24.0"
+    "unist-builder": "^2.0.0",
+    "xo": "^0.27.0"
   },
   "scripts": {
     "format": "remark . -qfo && prettier --write \"**/*.js\" && xo --fix",
@@ -74,6 +74,7 @@
     "prettier": true,
     "esnext": false,
     "rules": {
+      "unicorn/prefer-includes": "off",
       "no-negated-condition": "off",
       "guard-for-in": "off"
     },