文件夹整理

doc/test-data/purchase_transaction/node_modules/uuid/CONTRIBUTING.md

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+# Contributing
+
+Please feel free to file GitHub Issues or propose Pull Requests. We're always happy to discuss improvements to this library!
+
+## Testing
+
+```shell
+npm test
+```
+
+## Releasing
+
+Releases are supposed to be done from master, version bumping is automated through [`standard-version`](https://github.com/conventional-changelog/standard-version):
+
+```shell
+npm run release -- --dry-run  # verify output manually
+npm run release               # follow the instructions from the output of this command
+```