Update README.md (#40)

Author: kadiryazici

README.md

@@ -24,7 +24,7 @@ An app to view your notifications easily on your menubar.
 </div>
 
 # Known Problems
--  Gitification is not certificated by an apple developer account, after you download it you have to allow it in `Preference/Privacy & Securiy`. I don't earn money from open source, but if I earn `50$` from github sponsorships, I will sign the app.
+-  Gitification is not certificated by an apple developer account, after you download it you have to allow it in `Preference/Privacy & Securiy`. I don't earn money from open source, but if I earn `50$` per year from github sponsorships, I will sign the app.
 
 - The app is currently ready to be compiled for Windows or Linux but I'm a Mac user so that after I added the features in my mind, I will create Windows and Linux builds.