fix(docs): Fix docs structure

[plasticfiresam]

Changes

• Moved documentation to docs folder
• Renamed testing.md to qa.md

[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (217c73e) 96.34% compared to head (dd76e35) 96.34%.

:exclamation: Current head dd76e35 differs from pull request most recent head f6d27f7. Consider uploading reports for the commit f6d27f7 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #66 +/- ## ======================================= Coverage 96.34% 96.34% ======================================= Files 4 4 Lines 82 82 ======================================= Hits 79 79 Misses 3 3 ```

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