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

README.md

@@ -6,7 +6,7 @@ This project contains all sources to build the container image `git.cryptic.syst
 of this project is to package the binary `jq` as container image. The source code of the binary can be found in the
 upstream project of [adrienverge](https://github.com/adrienverge/jq).
 
-A documentation or how to use `jq` is available on [readthedocs.io](https://jq.readthedocs.io/en/stable/). An example
+The workflow or how `jq` can in general be used is documented [here](https://jq.readthedocs.io/en/stable/). An example
 how to use this image and read a JSON file from stdin is documented below. Pleas adapt the path of the JSON file.
 
 ```bash