App version in manifest updated to match play store release. (#2732)

Author: yashk2000

app/src/main/AndroidManifest.xml

@@ -2,8 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     package="org.fossasia.phimpme"
-    android:versionCode="8"
-    android:versionName="1.6.0">
+    android:versionCode="9"
+    android:versionName="1.7.0">
 
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />