update threading docs info

[clavedeluna]

Overview

Update threading codemod docs

Description

• docs PR https://github.com/pixee/docs/pull/88/files

[codecov]

Codecov Report

Merging #78 (62a589e) into main (94a0b12) will decrease coverage by 0.13%.
The diff coverage is 100.00%.

❗ Current head 62a589e differs from pull request most recent head 37cdfeb. Consider uploading reports for the commit 37cdfeb to get more accurate results

@@            Coverage Diff             @@
##             main      #78      +/-   ##
==========================================
- Coverage   96.33%   96.21%   -0.13%     
==========================================
  Files          48       46       -2     
  Lines        1885     1824      -61     
==========================================
- Hits         1816     1755      -61     
  Misses         69       69              

Files	Coverage Δ
src/core_codemods/with_threading_lock.py	100.00% <100.00%> (ø)

... and 3 files with indirect coverage changes