translated strings to german

Author: connyduck

app/src/main/res/values-de/values.xml

@@ -43,8 +43,8 @@
 
     <string name="author">Conny Duck</string>
 
-    <string name="pref_open_source_title">This app is Open Source</string>
-    <string name="pref_open_source_summary">Get the code on Github!</string>
+    <string name="pref_open_source_title">Diese App ist Open Source</string>
+    <string name="pref_open_source_summary">Der Quellcode ist auf Github verfügbar</string>
 
 
 </resources>