Add basic information about the addon install process

README.md

@@ -1,3 +1,23 @@
 # Blender Docker
+Docker project to generate Blender image, really usefull to generate Unit Test
 
-Docker project to generate Blender image, really usefull to generate Unit Test
+
+# Adding an Addon
+Mount a new volume with your addon inside a folder (ex `/blender-plugin/plugin-archive.zip`), when you run your docker container add this volume and execute a script to add-it with the blender installed.
+
+Python function to install an addon with Blender. The file his named `install.py`
+````python
+import bpy
+def b3d_install_addon():
+    bpy.ops.preferences.addon_install(filepath='./plugin-archive.zip')
+    bpy.ops.preferences.addon_enable(module='plugin-name')
+
+if __name__ == '__main__':
+    b3d_install_addon()
+````
+
+Call this function with blender inside this container
+````shell
+#!/bin/sh
+/opt/blender/blender --background --python "install.py"
+````