fix #305, align file editor text to the top

Author: tibbi

app/src/main/res/layout/activity_read_text.xml

@@ -11,6 +11,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:background="@null"
+        android:gravity="top"
         android:inputType="textMultiLine|textNoSuggestions"
         android:padding="@dimen/medium_margin"
         android:textCursorDrawable="@null"