Update app.json

Author: Taaku18

CHANGELOG.md

@@ -25,6 +25,7 @@ however, insignificant breaking changes do not guarantee a major version bump, s
 - Plugins will automatically be removed when it fails to load.
 - Moved all database-related activities to clients.py under MongoDBClient, with possible future hook for additional database support.
 - Deprecated `bot.plugin_db.get_partition` in favour of `bot.api.get_plugin_partition` (not final).
+- Deprecated `MONGO_URI` config var (but will keep support in the future) in favour of `CONNECTION_URI` and `DATABASE_TYPE`. Right now there is one supported database - "mongodb", which is the default.
 
 ### Fixed
 

app.json

@@ -15,10 +15,14 @@
       "description": "Comma separated user IDs of people that are allowed to use owner only commands. (eval).",
       "required": true
     },
-    "MONGO_URI": {
-      "description": "Mongo DB connection URI for self-hosting your data.",
+    "CONNECTION_URI": {
+      "description": "The connection URI for your database.",
       "required": true
     },
+    "DATABASE_TYPE": {
+      "description": "The type of your database. There is only one supported database at the moment - MongoDB (default).",
+      "required": false
+    },
     "LOG_URL": {
       "description": "The url of the log viewer app for viewing self-hosted logs.",
       "required": true