Docs: 2.0.0 documentation points to the kirkstone branch

The module affected

Documentation https://docs.oniroproject.org/en/v2.0.0/oniro/oniro-quick-build.html

What is the action to reproduce the bug?

NA

What is the result you see?

The docs are telling the user to download the kirkstone branch instead of the 2.0.0 tag.

What is the result you expect?

Point to the 2.0.0 tag

Frequency?

always

Tested version

tag 2.0.0

Do you know any workaround of this issue?

NA

Do you have a fix for this issue?

NA