Fix mistakes and clarify docs for no-restricted-paths

[greim]

Some of the example paths don't match the file trees given. This also cleans up some of the file tree formatting and clarifies the wording to hopefully avoid confusion.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.80%. Comparing base (6e49a58) to head (f82095e).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3172      +/-   ##
==========================================
+ Coverage   95.63%   95.80%   +0.16%     
==========================================
  Files          83       83              
  Lines        3690     3691       +1     
  Branches     1333     1334       +1     
==========================================
+ Hits         3529     3536       +7     
+ Misses        161      155       -6     

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[greim]

Can preview in the forked repo: https://github.com/greim/eslint-plugin-import/blob/main/docs/rules/no-restricted-paths.md