Update .env.example

.env.example

@@ -1,4 +1,4 @@
-APP_NAME=PixelFed Test
+APP_NAME="PixelFed Test"
 APP_ENV=local
 APP_KEY=
 APP_DEBUG=true
@@ -33,12 +33,18 @@ MAIL_USERNAME=null
 MAIL_PASSWORD=null
 MAIL_ENCRYPTION=null
 
-SESSION_DOMAIN=localhost
+SESSION_DOMAIN="${APP_DOMAIN}"
 SESSION_SECURE_COOKIE=true
 API_BASE="/api/1/"
 API_SEARCH="/api/search"
 
 OPEN_REGISTRATION=true
+RECAPTCHA_ENABLED=false
+ENFORCE_EMAIL_VERIFICATION=true
+
+MAX_PHOTO_SIZE=15000
+MAX_CAPTION_LENGTH=150
+MAX_ALBUM_LENGTH=4
 
 MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
 MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"