Populate README with content

Author: sdruskat

README.md

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-# software-metadata.pub
-Website for the virtual software-metadata.pub organization.
+# Software Metadata Publication
+
+Welcome. 
+This is the website for the virtual Software Metadata Publication organization (*software-metadata.pub*).
+
+software-metadata.pub is an umbrella for projects in the software metadata publication space,
+run by a [consortium](#consortium) of research organizations within the [Helmholtz Association](https://www.helmholtz.de/).
+
+## Projects
+
+### HERMES: Helmholtz Rich Metadata Software Publication
+
+> **HERMES** workflows enable automated publication of rich research software metadata and artifacts to publication repositories using open source tooling.
+
+- Learn more on the [HERMES website](https://hermes.software-metadata.pub).
+
+### Software CaRD: Helmholtz Rich Metadata Software Publication
+
+> **Software CaRD** (*Software Curation and Reporting Dashboard*) is an open source application that presents software publication metadata for curation. Preprocessed metadata from automated pipelines are made accessible in a structured graphical view, with highlighted issues and conflicts. Software CaRD also assesses metadata for compliance with configurable policies, and lets users track and visualize relevant metadata for evaluation and reporting.
+
+- Learn more on the [Software CaRD website](https://helmholtz-metadaten.de/en/inf-projects/softwarecard).
+
+## Consortium
+
+The following Helmholtz centers are involved in Software Metadata Publication projects.
+
+- [German Aerospace Center (DLR)](https://dlr.de)
+- [Helmholtz-Zentrum Dresden-Rossendorf](https://hzdr.de)
+- [Forschungszentrum Jülich](https://fz-juelich.de)
+- [Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum](https://www.gfz-potsdam.de/)