message: chore: Add branches information to CONTRIBUTING.md
diff: @@ -81,6 +81,11 @@ yarn
  yarn website
  ```
  +### Branches
  +
  +`master` branch contains current stable version of `reakit` packages and it is publishing as main `latest` [dist-tag](https://docs.npmjs.com/cli/dist-tag) to npm. PRs with bug fixes could be targeted directly to the `master` branch.
  +PRs that introduce new features/components should be targeted to the `next` branch. Newly added components and APIs should be prefixed with `unstable_` to indicate its experimental status.
  +
  ### Scripts
  - `yarn test` runs tests for all packages.
  