Change the mail address in the README.md

Author: Rolf Warnecke

README.md

@@ -1,5 +1,5 @@
 # iOSAppTranslationStrings
 
-These files are the translation pattern for the iOS App phpMyFAQ. The app is for all iPhones and iPads with the iOS Version 7.1 or higher. If you have translate a new language or you have some corrections for existing languages you can send me a mail to support@bis-programmierung.de or create a new issue on github.
+These files are the translation pattern for the iOS App phpMyFAQ. The app is for all iPhones and iPads with the iOS Version 7.1 or higher. If you have translate a new language or you have some corrections for existing languages you can send me a mail to support@q4u.digital or create a new issue on github.
 
-Please write the mail or issue in german or english.
+Please write an mail or issue in german or english.