Update README.md

Author: juanangp

README.md

@@ -1,2 +1,11 @@
-# legacy
+# The legacy library
+# The raw library
+[![DOI](https://zenodo.org/badge/324291710.svg)](http://doi.org/10.5281/zenodo.4528985)
+[![pipeline status](https://gitlab.cern.ch/rest-for-physics/rawlib/badges/master/pipeline.svg)](https://gitlab.cern.ch/rest-for-physics/rawlib/-/commits/master)
+[![website](https://img.shields.io/badge/user-guide-E8B6FF.svg)](https://rest-for-physics.github.io)
+[![api](https://img.shields.io/badge/user-API-FFCA78.svg)](https://sultan.unizar.es/rest/)
+[![forum](https://img.shields.io/badge/user-forum-AAFF90.svg)](https://rest-forum.unizar.es/)
+
 This library contains legacy classes from previous REST versions to keep backward compatibility of the data.
+
+Please have a look to this library [contribution guide](CONTRIBUTING.md) before pushing changes to this repository.