Update README.md

[TakangNina]

Checklist:

• If you are new to Scapy: I have checked CONTRIBUTING.md (esp. section submitting-pull-requests)
• I squashed commits belonging together
• I added unit tests or explained why they are not relevant
• I executed the regression tests (using cd test && ./run_tests or tox)
• If the PR is still not finished, please create a Draft Pull Request

fixes #xxx

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.15%. Comparing base (86f034b) to head (fadcc75).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4502      +/-   ##
==========================================
- Coverage   81.64%   79.15%   -2.49%     
==========================================
  Files         337      330       -7     
  Lines       84604    79704    -4900     
==========================================
- Hits        69074    63089    -5985     
- Misses      15530    16615    +1085     

see 70 files with indirect coverage changes