publish a flutter app code example

Example 1: flutter publish package command

flutter pub publish --dry-run /// run this before publishing the package
flutter pub publish /// when ready to publish

Example 2: flutter publish app

keytool -genkey -v -keystore c:\Users\USER_NAME\key.jks -storetype JKS -keyalg RSA -keysize 2048 -validity 10000 -alias key