Doc issue: github-action-benchmark and docusaurus can not co exist

[darrenge]

The default branch for github-action-benchmark is "gh-pages". The default branch for docusaurus is "gh-pages". The problem is that when the documentation is updated in docusaurus, then docusaurus deletes gh-pages and recreates it with the new documentation pages. Obviously, this then wipes out the history of github-action-benchmarking.

The work around would to have github-action-benchmark on a separate branch.

[ktrz]

@darrenge we already have a param for that. gh-pages-branch

[darrenge]

Might be worth it to mention gh-pages might be affected by other apps.