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

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 pretty [documented](https://yamllint.readthedocs.io/en/stable/).
+The workflow or how `yamllint` can in general be used is documented [here](https://yamllint.readthedocs.io/en/stable/).