chore(deps): update davidanson/markdownlint-cli2-action action to v20

.gitea/workflows/markdown-linters.yaml

@@ -17,6 +17,6 @@ jobs:
     - ubuntu-latest
     steps:
     - uses: actions/checkout@v4.2.2
-    - uses: DavidAnson/markdownlint-cli2-action@v19.1.0
+    - uses: DavidAnson/markdownlint-cli2-action@v20.0.0
       with:
         globs: '**/*.md'

README.md

@@ -6,4 +6,4 @@ This project contains all sources to build the container image `git.cryptic.syst
 primary goal of this project is to package the binary `yamllint` as container image. The source code of the binary can
 be found in the upstream project of [adrienverge](https://github.com/adrienverge/yamllint).
 
-The workflow or how `yamllint` can in general be used is documented [here](https://yamllint.readthedocs.io/en/stable/).
+The workflow or how `yamllint` can in general be used is pretty [documented](https://yamllint.readthedocs.io/en/stable/).