Update README.md

README.md

@@ -1,13 +1,25 @@
 # DiscordMediaRichPresence
 
 ## Usage
-`DiscordMediaRP.exe -d <Your AppliocationKey> [-l Debug]`
+`DiscordMediaRP.exe [-d <Your ApplicationKey>] [-l Debug]`
 
-Your Application should have 5 Assets:
-- cat
-- play
-- pause
-- stop
-- music
+If you omit the ApplicationKey as argument, you need to use a `config.json`:
+```json
+{
+  "DiscordKey": "<Your ApplicationKey>",
+  "UseSpotify": false,
+  "WebbrowserIgnoreSites": [
+    "Youtube",
+    "Reddit"
+  ]
+}
+```
+
+Your Discord-Application should have 5 Assets:
+* cat
+* play
+* pause
+* stop
+* music
 
 ![image](https://github.com/C9Glax/DiscordMediaRichPresence/assets/13404778/f28c1c4a-8297-4d99-a0ec-0538ffdd427b)