diff --git a/README.md b/README.md
index affb588..097216e 100644
--- a/README.md
+++ b/README.md
@@ -58,7 +58,10 @@ docker-compose logs <container_name>
 `docker-compose ps`
 
 ## Update or Re-create base image
-
+```bash
+docker image rm <ID>
+docker-compose build <container_name>
+```
 
 # Specific container usage
 
@@ -106,6 +109,24 @@ Create a VHOST file in `<DATA>/httpd/`. Add this to your vhost to connect php.
 Don't forget to create the directory in your workspace.  
 To enable the new vhosts, simply stop an start the `httpd` container (`docker-compose stop && docker-compose start`).
 
+### Change php settings dynamically
+In the root dir of your project, you could add a .user.ini wich change somme configuration (see file is read every five minutes)
+
+Sample
+```
+upload_max_filesize=513M
+post_max_size=513M
+memory_limit=128M
+mbstring.func_overload=0
+always_populate_raw_post_data=-1
+default_charset='UTF-8'
+date.timezone='Europe/Paris'
+display_errors=off
+env[APPLICATION_ENV] = "development"
+soap.wsdl_cache_enabled=0
+```
+
+
 ## Database
 Database files are store in `<DATA>/`.  
 Even if you delete your container, all data are preserved.