add DOI badge

Author: Remi-Gau

.gitignore

@@ -26,5 +26,9 @@ check_my_code_report.txt
 .ipynb_checkpoints
 */.ipynb_checkpoints/*
 
+# ignore node js files
+node_modules/*
+package-lock.json
+
 
 

README.md

@@ -4,6 +4,10 @@
 
 [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/cpp-lln-lab/CPP_BIDS/master?filepath=notebooks%2Fbasic_usage.ipynb)
 
+**Cite it**
+
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.4007674.svg)](https://doi.org/10.5281/zenodo.4007674)
+
 **Unit tests and coverage**
 
 [![](https://img.shields.io/badge/Octave-CI-blue?logo=Octave&logoColor=white)](https://github.com/cpp-lln-lab/CPP_BIDS/actions)