Fix issue with quotes in openssl command

Author: clcain

gen-self-signed-cert.sh

@@ -11,4 +11,4 @@ sudo mkdir -p letsencrypt/live/$1/
 sudo openssl req -x509 -newkey rsa:4096 \
     -keyout letsencrypt/live/$1/privkey.pem \
     -out letsencrypt/live/$1/fullchain.pem \
-    -days 365 -nodes -subj '/CN=$1'
+    -days 365 -nodes -subj "/CN=$1"