README.md adding new badges

README.md

@@ -1,4 +1,9 @@
+# The detector library
+[![DOI](https://zenodo.org/badge/324291710.svg)](http://doi.org/10.5281/zenodo.4528985)
 [![pipeline status](https://gitlab.cern.ch/rest-for-physics/detectorlib/badges/master/pipeline.svg)](https://gitlab.cern.ch/rest-for-physics/detectorlib/-/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 is used to define a detector readout topology, and access gas or other detector properties. It also implements processes including routines for event reconstruction from real detector data, and/or emulation of different physical response effects, such as electron diffusion, smearing, or basic spatial transformations.