docs: badges with main branch

[ghost]

Description

This PR uses main branch for the badges.

Motivation and Context

How has this been tested?

Screenshots (if appropriate):

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• [ ] Add tests to cover changes as needed.
• [ ] Update documentation as needed.

[codecov-commenter]

Codecov Report

Merging #442 (93ebcb1) into main (4c49d56) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #442   +/-   ##
=======================================
  Coverage   82.00%   82.00%           
=======================================
  Files          44       44           
  Lines        1801     1801           
  Branches      326      326           
=======================================
  Hits         1477     1477           
  Misses        324      324           

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