srs/CONTRIBUTING.md

Welome to contribute to SRS!

1. Please read **Contribution([CN](https://github.com/ossrs/srs/issues/2866#contribution) EN)** before file new PR.
2. Please start from fixing some [issues](https://github.com/ossrs/srs/issues), then follow the [guide](https://github.com/ossrs/srs/wiki/HowToFilePR).
3. We will review your PR ASAP.
Create CONTRIBUTING.md 3 years ago			`Welome to contribute to SRS!`

Update contribution 3 years ago			`1. Please read Contribution([CN](https://github.com/ossrs/srs/issues/2866#contribution) EN) before file new PR.`
			`2. Please start from fixing some [issues](https://github.com/ossrs/srs/issues), then follow the [guide](https://github.com/ossrs/srs/wiki/HowToFilePR).`
Create CONTRIBUTING.md 3 years ago			`3. We will review your PR ASAP.`