Update README.md

Author: tibbi

README.md

@@ -10,7 +10,7 @@ Contains no ads or unnecessary permissions. It is fully opensource, provides cus
 This app is just one piece of a bigger series of apps. You can find the rest of them at http://www.simplemobiletools.com
 
 <a href='https://play.google.com/store/apps/details?id=com.simplemobiletools.draw'><img src='http://simplemobiletools.github.io/assets/public/google-play.png' alt='Get it on Google Play' height=45/></a>
-<a href='https://f-droid.org/app/com.simplemobiletools.draw'><img src='http://simplemobiletools.github.io/assets/public/f-droid.png' alt='Get it on F-Droid' height=45 ></a>
+<a href='https://f-droid.org/packages/com.simplemobiletools.draw'><img src='http://simplemobiletools.github.io/assets/public/f-droid.png' alt='Get it on F-Droid' height=45 ></a>
 
 <div style="display:flex;">
 <img alt="App image" src="screenshots/app.png" width="30%">