Merge pull request #275 from openMetadataInitiative/lzehl_updateREADME

Update README.md

README.md

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 # openMINDS_SANDS
 
-The openMINDS_SANDS repository is part of the **open** **M**etadata **I**nitiative for **N**euroscience **D**ata **S**tructures (openMINDS). It provides metadata schemas for **S**patial **A**nchoring of **N**euroscience **D**ata **S**tructures, including brain atlas definitions.
+[![GitHub][license-shield]][license-url]
+[![GitHub contributors][contributors-shield]][contributors-url]
 
-For more information please go to the [main openMINDS repository](https://github.com/HumanBrainProject/openMINDS).
+The **openMINDS_SANDS** repository hosts one of the metadata models of the **openMINDS metadata framework**. It defines modular metadata schemas for **s**patial **a**nchoring of **n**euroscience **d**ata **s**tructures.
+
+To generally learn more about the openMINDS metadata framework please go to :arrow_right: [**ReadTheDocs**][docu-url].  
+Or explore directly the metadata schemas of the openMINDS_SANDS metadata model under :arrow_right: [**schema specifications**][docu-sands-url].
 
 ## How to contribute
-Please check our [contribution document](https://github.com/HumanBrainProject/openMINDS/blob/main/CONTRIBUTING.md).
 
-## License
-This work is licensed under the MIT License.
+The openMINDS metadata framework is an open-source project and community contributions are highly appreciated.  
+If you want to contribute please follow our :arrow_right: [**contribution guidelines**][contribution-url].
 
-**Logo:** The openMINDS logo was created by U. Schlegel, based on an original sketch by C. Hagen Blixhavn and feedback by L. Zehl.
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+[contribution-url]: https://openminds-documentation.readthedocs.io/en/latest/shared/contribution_guidelines.html
+[contributors-url]: https://github.com/openMetadataInitiative/openMINDS_SANDS/graphs/contributors
+[contributors-shield]: https://img.shields.io/github/contributors/openMetadataInitiative/openMINDS_SANDS
+[docu-url]: https://openminds-documentation.readthedocs.io
+[docu-sands-url]: https://openminds-documentation.readthedocs.io/en/v3.0/schema_specifications/SANDS.html
+[license-url]: https://raw.githubusercontent.com/openMetadataInitiative/openMINDS_SANDS/v3/LICENSE.txt
+[license-shield]: https://img.shields.io/github/license/openMetadataInitiative/openMINDS_SANDS