unify links in README

README.md

@@ -1,6 +1,6 @@
 # SMS Backup+ <img src="https://raw.githubusercontent.com/jberkel/sms-backup-plus/master/metadata/play/assets/sms-backup.svg?sanitize=true" height="50px" alt="SMS Backup+ logo"/> [![Build Status SVG][]][Build Status] [![Open Source Helpers](https://www.codetriage.com/jberkel/sms-backup-plus/badges/users.svg)](https://www.codetriage.com/jberkel/sms-backup-plus)
 
-[<img alt="Get it on Google Play" src="https://jberkel.github.io/sms-backup-plus/assets/img/google-play-badge.png" height="80pt"/>](https://play.google.com/store/apps/details?id=com.zegoggles.smssync) [<img alt="Get it on F-Droid" src="https://jberkel.github.io/sms-backup-plus/assets/img/f-droid-badge.svg" height="80pt"/>](https://f-droid.org/packages/com.zegoggles.smssync/)
+[<img alt="Get it on Google Play" src="https://jberkel.github.io/sms-backup-plus/assets/img/google-play-badge.png" height="80pt"/>][Google Play Store] [<img alt="Get it on F-Droid" src="https://jberkel.github.io/sms-backup-plus/assets/img/f-droid-badge.svg" height="80pt"/>][F-Droid]
 
 This is a fork of the now defunct Android backup tool
 [SMS Backup](http://code.google.com/p/android-sms). It uses Gmail/IMAP to perform SMS, MMS and call log backups over