since the vendor already stable since 1.5, update the doc to remove the note on vendor still experiment.

Update README_zh-CN.md

README_ru: remove unknown word

This word meant "new Go Modules", but "new" in russian was written with typo and was unrecognizable.
Go Module isn't new as well.

Fix errors in Chinese grammar

refactor: update russian translation

fix typo and markdown style

updated the `master` branch back to `main`

doc: adds missing "it" translation links

Add Vietnamese translation for README.md

Update link to Terraform example

fix typo

removed mesos and bosh

Review of the Italian translation

fix typo in README.md

Update README.md

update go.mod to the latest go version

Fix coquille in French translation

Update Russian translation

Add indonesian translation

Minor changes to make the translation more natural

Chinese errors caused by machine translation

Portuguese > Português (as it is in portuguese language)

Added ukrainian translation