Made the app more specific for the Play Store
Ignoring generated Java Files.
Provided an id for the TextView.
Increased the minimum SDK version for the first supporting NFC.
Provided strings to show that NFC is enabled/disabled
Added a default string for when there is no tag been detected.
Added a status TextView
Moved TextViews to prevent them from clashing.
Noted usability features and how sample tags were prepared.
Implemented the MainActivity so that it can read tag data from Intents