Update .gitignore

Add example of remove `MenuKeyboard` buttons

Fix bug in get README file

Update version to be `2.4.8`

Update version to be `2.4.7.2`

Merge remote-tracking branch 'origin/master'

docs: Update `whats_new.rst` page

Add new chat type `channel`

Update version to be `2.4.4`

docs: Change picture of Bale