feat(series): add DDR EXTREME(US) info

[nogic1008]

No description provided.

[commit-lint]

Features

• series: add EXTREME(US) doc (bf18bdd)
• songs: add EXTREME(US) songs (35aab6b)

Code Refactoring

• test: improve json tests (a1bd47f)

Contributors

nogic1008

Commit-Lint commands

You can trigger Commit-Lint actions by commenting on this PR:

• @Commit-Lint merge patch will merge dependabot PR on "patch" versions (X.X.Y - Y change)
• @Commit-Lint merge minor will merge dependabot PR on "minor" versions (X.Y.Y - Y change)
• @Commit-Lint merge major will merge dependabot PR on "major" versions (Y.Y.Y - Y change)
• @Commit-Lint merge disable will desactivate merge dependabot PR
• @Commit-Lint review will approve dependabot PR
• @Commit-Lint stop review will stop approve dependabot PR

[codecov]

Codecov Report

Merging #640 (a1bd47f) into master (fcdec83) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #640   +/-   ##
=======================================
  Coverage   97.28%   97.28%           
=======================================
  Files          18       18           
  Lines         625      625           
  Branches       76       76           
=======================================
  Hits          608      608           
  Misses         17       17           

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more