diff --git a/README.md b/README.md
index d1785d2..d637d65 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,16 @@ docker build -t git-puller .
 After this is done successfully, you can check out the new image in your local image store with `docker images`.
 
 
+## Configuration
+
+Essentially, this image can be configured over environment variables.
+
+- **`PULL_LOCATION`**: used to set the container-internal folder which is getting pulled frequently (you should mount one into this direction) - defaults to `/to-pull`
+- **`PULL_INTERVAL`**: the interval between pulls in seconds (minimum is 5, default is 60)
+- **`PULLER_UID`**: the uid of the user that executes the `git pull` command (defaults to 1000)
+- **`GIT_OUTPUT`**: if set to 0, the `git pull` stdout will be hidden from docker logs (redirected to /dev/null ;)  (if not set, everything is visible in the docker logs)
+
+
 ## Useful links
 
 Similar projects: