Malte Kyhos

With the now available [Mermaid support in Github Markdown](https://github.blog/2022-02-14-include-diagrams-markdown-files-mermaid/), this is probably not necessary from initial intention, however it would still be sometimes useful if one wants to include diagrams...

OpenStreetMap related APIs could be wonderful candidates as well! I opened a separate issue (https://github.com/paulcbauer/apis_for_social_scientists_a_review/issues/30) for further discussion, if necessary :pray: