Update README link to B2C configuration page

[kbeaugrand]

Description

What's new?

• Github README change

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Tests
• Other

[codecov]

Codecov Report

Merging #419 (654a9df) into main (1200105) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #419   +/-   ##
=======================================
  Coverage   57.37%   57.37%           
=======================================
  Files         111      111           
  Lines        3287     3287           
=======================================
  Hits         1886     1886           
  Misses       1401     1401           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1200105...654a9df. Read the comment docs.