Merge branch 'more_doc' into 'develop'

More documentation

See merge request !21

README.md

@@ -7,3 +7,33 @@ Supported products:
 - Sentinel-2 Level 2 (THEIA)
 - Sentinel-2 Level 3 (THEIA)
 
+# Documentation
+
+[Auto-generated doc](https://umr-tetis.gitlab.irstea.page/scenes)
+
+# How to contribute?
+
+Scenes follows the **gitflow** workflow.
+All you have to do is:
+1. Start from **develop** branch
+
+```
+git checkout develop
+```
+
+2. Create a new branch
+
+```
+git checkout -b 12-my_new_feature  # say somebody has opened an issue (#12) on gitlab
+```
+
+3. Push the new branch
+
+```
+git push origin 12-my_new_feature
+```
+
+4. Create a **merge request** from gitlab (**Left panel** > **Merge requests** > **New merge request**) or simply by copying the link displayed after the git push.
+The merge request will trigger the CI (static analysis, tests, etc). 
+To be merged, the new branch has to pass all tests.
+Then, the new branch will be reviewed and merged.