Adjust CONTRIBUTING.md and README.md

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 ## Submitting bug reports
 
-If you find a bug, feel free to [open an issue](https://github.com/stefan-niedermann/OwnCloud-Notes/issues/new). But please provide these information in the comment:
+If you find a bug, feel free to [open an issue](https://github.com/nextcloud/notes-android/issues/new). But please provide these information in the comment:
 
 **Android version:** e. g. 6.0.1 Marshmallow
 

README.md

@@ -18,12 +18,6 @@ An android client for [Nextcloud Notes App](https://github.com/nextcloud/notes/)
 [<img src="https://f-droid.org/badge/get-it-on.png"
       alt="Get it on F-Droid"
       height="80">](https://f-droid.org/repository/browse/?fdid=it.niedermann.owncloud.notes)
-[<img src="https://raw.githubusercontent.com/stefan-niedermann/paypal-donate-button/master/paypal-donate-button.png"
-      alt="Donate with PayPal"
-      height="80">](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=K7HVLE6J7SXXA)
-[<img src="https://raw.githubusercontent.com/stefan-niedermann/DonateButtons/master/LiberaPay.png"
-      alt="Donate using Liberapay"
-      height="80">](https://liberapay.com/stefan-niedermann/donate)
 
 ## :eyes: Screenshots