initial commit dev branch

Author: ousa17

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

@@ -6,7 +6,6 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context="com.example.user.kotlin_sm_workshop.MainActivity">
-
     <TextView
         android:id="@+id/message"
         android:layout_width="wrap_content"