Update badge to point to build action

README.md

@@ -1,5 +1,4 @@
-[![Unix Build Status][travis-image]][travis-link]
-[![Windows Build Status][appveyor-image]][appveyor-link]
+[![Build][github-ci-image]][github-ci-link]
 [![Coverage Status][codecov-image]][codecov-link]
 [![pypi-version][pypi-image]][pypi-link]
 ![License][license-image-mit]
@@ -16,12 +15,10 @@ Extension documentation is found here: https://facelessuser.github.io/pymdown-ex
 
 License is MIT except for a few exceptions.  See [LICENSE](https://github.com/facelessuser/pymdown-extensions/blob/master/LICENSE.md) for more info.
 
+[github-ci-image]: https://github.com/facelessuser/pymdown-extensions/workflows/build/badge.svg
+[github-ci-link]: https://github.com/facelessuser/pymdown-extensions/actions?workflow=build
 [codecov-image]: https://img.shields.io/codecov/c/github/facelessuser/pymdown-extensions/master.svg
 [codecov-link]: https://codecov.io/github/facelessuser/pymdown-extensions
-[travis-image]: https://img.shields.io/travis/facelessuser/pymdown-extensions/master.svg?label=Unix%20Build&logo=travis
-[travis-link]: https://travis-ci.org/facelessuser/pymdown-extensions
-[appveyor-image]: https://img.shields.io/appveyor/ci/facelessuser/pymdown-extensions/master.svg?label=Windows%20Build&logo=appveyor
-[appveyor-link]: https://ci.appveyor.com/project/facelessuser/pymdown-extensions
 [pypi-image]: https://img.shields.io/pypi/v/pymdown-extensions.svg?logo=python&logoColor=white
 [pypi-link]: https://pypi.python.org/pypi/pymdown-extensions
 [license-image-mit]: https://img.shields.io/badge/license-MIT-blue.svg

tools/labels.json

@@ -25,7 +25,7 @@
         "maintenance": {"color": "maintenance", "description": "Maintenance chore."},
         "support": {"color": "support", "description": "Support request."},
 
-        "extensiion": {"color": "category", "description": "Related to the core."},
+        "extensiion": {"color": "category", "description": "Related to extensions."},
         "integration": {"color": "category", "description": "Related to packaging and/or testing."},
         "docs": {"color": "category", "description": "Related to documentation."},