Bumped version to 3.3.0

Bumped version to 3.3.0-beta01

Update README.md

Bumped version to 3.3.0-alpha02

Merge pull request #822 from arkivanov/update-docs

Added docs for the new Web Navigation API

Bumped version to 3.2.2

Bumped version to 3.2.1

Updated docs

 Bumped version to 3.2.0-beta03

Merge pull request #788 from arkivanov/panels-docs

Added docs for Child Panels