Fix the docs for the target branch for the rc release

[ffjlabo]

What this PR does / why we need it:

as title

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[t-kikuc]

Clear

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 22.79%. Comparing base (78a6843) to head (ced5577).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5140      +/-   ##
==========================================
- Coverage   22.80%   22.79%   -0.02%     
==========================================
  Files         412      412              
  Lines       43827    43827              
==========================================
- Hits         9996     9989       -7     
- Misses      33044    33050       +6     
- Partials      787      788       +1     

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