Update readme and remove addition to .env as not necessary for everyone

.env

@@ -29,5 +29,3 @@ PUSHER_APP_ID=
 PUSHER_APP_KEY=
 PUSHER_APP_SECRET=
 PUSHER_APP_CLUSTER=mt1
-
-FORCE_HTTPS=true

readme.md

@@ -187,6 +187,8 @@ location / {
 }
 ```
 
+If you are using https and things aren't working try adding `FORCE_HTTPS=true` to the end of your .env file
+
 ### Self-signed certificates and local CAs
 Per default Heimdall uses the standard certificate bundle file (ca-certificates.crt) to verify HTTPS sites and will ignore additional certificates placed in /etc/ssl/certs. If you wish to use enhanced apps with HTTPS sites that use a self-signed certificate or certs signed with your own local CA, you can override the default bundle: