Update print statement from 'Hello' to 'Goodbye'

Update fmt.Println message to 'Goodbye World'

Update MainActivity.java

Delete PROPAR APP.zip

Rename MainActivityExample.java to app/src/main/java/com/propart/diagnostic/MainActivity.java

Update MainActivityExample.java

Update androidManifest.xml

Update and rename AndroidManifest.xml to androidManifest.xml

Update README.md

Add files via upload

Add files via upload

Initial commit