Add audiobookserver (#258)

.github/pull_request_template.md

@@ -34,7 +34,6 @@ delete these next checks if not adding a new recipe
 - [ ] I've added at least one footnote to my recipe (*Chef's Notes*)
 - [ ] I've updated `common-links.md` in the `_snippets` directory and sorted alphabetically
 - [ ] I've updated the navigation in `mkdocs.yaml` in alphabetical order
-- [ ] I've updated `CHANGELOG.md` in reverse chronological order order
 - [ ] I'm using the [oldest-possible version](https://docs.docker.com/compose/compose-file/compose-versioning/#version-3) of Docker-compose syntax for the feature my recipe needs (*v3.2 unless there's a specific need for a later version*)
 - [ ] If traefik integration is required, I've included both v1 and v2 labels (*see [template](/manuscript/recipes/template.md)*)
 - [ ] If a recipe-specific overlay network is required, I've used a unique subnet and recorded it in [networks.md](manuscript/reference/networks.md)

.github/workflows/markdownlint.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Lint markdown files
       uses: docker://avtodev/markdown-lint:v1 # fastest way