Fix/improve application metadata

README.md

-# calculus
+# Your Twister game companion

android/gradle.properties

 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=0.0.8
-app.versionCode=8
+app.versionName=0.0.9
+app.versionCode=9

fastlane/metadata/android/en-US/changelogs/9.txt

+Fix/improve application metadata.

fastlane/metadata/android/fr-FR/changelogs/9.txt

+Correction/amélioration des informations de l'application.

pubspec.yaml

-name: calculus
-description: calculus application
+name: twister
+description: twister game companion
 publish_to: 'none'
-version: 1.0.0+1
+version: 0.0.9+9
 
 environment:
   sdk: '^3.0.0'