Update README.md

[ztq1996]

Fix the link to the Documentation [Overview]

Problem & Solution Description (including issue #)

Code Quality

• [x ] My code follows the code style of this project
• I have written unit tests or justified all instances of #pragma: no cover; in the case of a bugfix, a new test that breaks as a result of the bug has been added
• My code contains relevant comments and necessary documentation for future maintainers; the change is reflected in applicable demos/tutorials (with output cleared!) and added/updated docstrings use the NumPy docstring format
• Any breaking changes, described above, are accompanied by backwards compatibility and deprecation warnings

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.78%. Comparing base (58d5e5e) to head (e2b19d0).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #97   +/-   ##
=======================================
  Coverage   96.78%   96.78%           
=======================================
  Files          31       31           
  Lines        1585     1585           
=======================================
  Hits         1534     1534           
  Misses         51       51           

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