Collect possible and interesting harvest sources

[led02]

No description provided.

[sferenz]

Source	Method	Link	Crosswalk	Status in HERMES
CodeMeta JSON	Read from file	-	-	Implemented
CFF	Read from file	?		Implemented
Git	Read from file	?		Implemented?
GitHub API	API		https://codemeta.github.io/crosswalk/github/	Not yet
GitLab API	API		Similar to https://codemeta.github.io/crosswalk/github/	Not yet
Readme-File (Somef)	Read from file	https://github.com/KnowledgeCaptureAndDiscovery/somef	Exports CodeMeta	Not yet
Programming-specific Metadata (e.g. for python, R, Java)	Read from file		https://codemeta.github.io/crosswalk/	Not yet
R description	Read from file	https://docs.ropensci.org/codemetar/	https://codemeta.github.io/crosswalk/	Not yet
Metadata from related Software publication (Journal)	Different	https://www.inggrid.org/article/id/3953/		Not yet
Metadata from related zenodo entry	Zenodo API	https://www.inggrid.org/article/id/3953/		Not yet

@led02 I finally found some time to start a list with relevante sources. Do you have additional sources in mind?