Added ability to enable read only mode from the config.

config.json.example

@@ -2,5 +2,9 @@
     "port": 80,
     "globalSalt": "[global salt (pepper) that is added to every ip before hashing to make it even harder for someone to decode the ip]",
     "adminUserID": "[the hashed id of the user who can perform admin actions]",
-    "behindProxy": true
+    "behindProxy": true,
+    "db": "./databases/sponsorTimes.db",
+    "privateDB": "./databases/private.db",
+    "mode": "development",
+    "readOnly": false
 }