All other READMEs and related materials can be found in [README/][100]. Although all of our materials should be linked in this README, be sure to check this directory for documents we’ve not yet added to this document.
- For build instructions please see [README/BUILD.md][115].
## Branches and Versions
Learn about which branches are available, which branch you should use, and how HTML Tidy’s versioning scheme works.
- Learn about version numbering in [README/VERSION.md][160].
- Learn about our repository branches in [README/BRANCHES.md][110].
## Contributing and Development Guides
We gladly accept PRs! Read about some of our contribution guidelines, and check out some of the additional explanatory documents that will aid your understanding of how to accomplish certain things in HTML Tidy.
### General Contribution Guidelines
These are some general guidelines that will help you help us when it comes to making your own contributions to HTML Tidy.
- Learn about our contributing guidelines in [README/CONTRIBUTING.md][125].
- Understand HTML Tidy’s source code style in [README/CODESTYLE.md][120].
### Adding Features Guides
When you’re ready to add a great new feature, these write-ups may be useful.
- Learn how to add new element attributes to HTML Tidy by reading [README/ATTRIBUTES.md][105].
- Discover how to add new tags to Tidy in [README/TAGS.md][130].
- If you want to add new messages to Tidy, read [README/MESSAGE.md][150].
- Configuration options can be added according to [README/OPTIONS.md][155].
- Pull Requests must pass all existing regression tests, or you must change existing regression test expectations with a good explanation. New features require that you add new regression tests. See [README/TESTING.md][165] for more details.
