Update README.md

Author: mfloto

README.md

@@ -1,10 +1,10 @@
 # ConnActivityMobile
 
 ## contributing
-- use dart format
-- for testing: add own fingerprint of sign-key to project (android only) via firebase-console
+- use ```dart format```
+- for testing: add own fingerprint of sign-key to project (android only) via firebase-console or use the provided debug.keystore from discord
 
 get sha-1 and sha-256 fingerprint: ```keytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android```
 
-## signing
-For now, dev-builds will be signed by each developers own key. A different key will be used for builds uploaded to Google Play. Builds by GitHub actions cannot communicate with firebase, etc.
+## android signing
+For now, dev-builds will be signed by each developers own key or the debug.keystore provided on discord. A different key will be used for builds uploaded to Google Play. Builds by GitHub actions cannot communicate with firebase, etc.