Merge pull request #25 from hackebrot/update-branch-name

Update documentation with new default branch name 📋

Author: hackebrot

.github/CONTRIBUTING.md

@@ -17,7 +17,7 @@ Please note that **labels** is released with a [Contributor Code of
 Conduct][code of conduct]. By participating in this project you agree to
 abide by its terms.
 
-[readme]: https://github.com/hackebrot/labels/blob/master/README.md
+[readme]: https://github.com/hackebrot/labels/blob/main/README.md
 [new issue]: https://github.com/hackebrot/labels/issues/new/choose
 [new pull request]: https://github.com/hackebrot/labels/compare
 [pull requests]: https://github.com/hackebrot/labels/pulls

README.md

@@ -175,8 +175,8 @@ source software.
 
 [PyPI]: https://pypi.org/project/labels/
 [calver]: https://calver.org
-[code of conduct]: https://github.com/hackebrot/labels/blob/master/CODE_OF_CONDUCT.md
-[contributing]: https://github.com/hackebrot/labels/blob/master/.github/CONTRIBUTING.md
+[code of conduct]: https://github.com/hackebrot/labels/blob/main/CODE_OF_CONDUCT.md
+[contributing]: https://github.com/hackebrot/labels/blob/main/.github/CONTRIBUTING.md
 [create token]: https://blog.github.com/2013-05-16-personal-api-tokens/
 [earth_repo]: https://github.com/hackebrot/earth
 [good first issue]: https://github.com/hackebrot/labels/labels/good%20first%20issue