Changes

# [https://www.answertopia.com/android-studio/constraintlayout-chains-and-ratios-in-android-studio/ Working with ConstraintLayout Chains and Ratios in Android Studio]<br><br>

# [https://www.answertopia.com/android-studio/an-android-studio-layout-editor-constraintlayout-tutorial/ An Android Studio Layout Editor ConstraintLayout Tutorial]<br><br>

# [[Managing Constraints using Constraint Sets]]<br><br>

# [[A Guide to using Instant Run in Android Studio]]<br><br>