Beautify doc notes

[Yshuo-Li]

No description provided.

[innerlee]

No its the mock imports, but the extensions. Please double check the referenced pr

[Yshuo-Li]

done.

[codecov]

Codecov Report

Merging #495 (a7d06e4) into master (87e3637) will increase coverage by 0.01%.
The diff coverage is n/a.

❗ Current head a7d06e4 differs from pull request most recent head 2a07315. Consider uploading reports for the commit 2a07315 to get more accurate results

@@            Coverage Diff             @@
##           master     #495      +/-   ##
==========================================
+ Coverage   80.48%   80.50%   +0.01%     
==========================================
  Files         190      190              
  Lines       10344    10344              
  Branches     1533     1533              
==========================================
+ Hits         8325     8327       +2     
+ Misses       1790     1789       -1     
+ Partials      229      228       -1     

Flag	Coverage Δ
unittests	80.47% <ø> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ls/components/stylegan2/generator_discriminator.py	86.14% <0.00%> (+1.20%)	⬆️

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