doc(README): référence l'image docker de Colibris.xyz

README.md

@@ -64,6 +64,10 @@ You can also check that your application is well configured by running
 `make check`.
 
 ## Deployment
+
+The following documentation is about manual deployment. If you prefer using
+Docker, check this [image](https://framagit.org/colibris-xyz/benevalibre-docker) from Colibris.xyz.
+
 ### Web application
 
 #### NginX with uWSGI