diff --git a/docker-compose.yml b/docker-compose.yml
index b93feaa..1924db8 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,6 +4,6 @@ services:
   image: docker.clkl.de/docker/update:0.1_alpine
   build: .
   volumes:
-   - ./docker-compose.py:/docker-compose.py
-   - ./sample:/services
-  command: bash -c 'python3 /docker_compose.py /services/*'
\ No newline at end of file
+   - /opt/docker/services:/services
+   - ./:/out/
+  command: bash -c 'python3 /out/show_updateable.py -s -o /out/updates.json /services/* --ignore zammad'
diff --git a/docker_compose.py b/docker_compose.py
index 1fab5c6..0afcf8c 100644
--- a/docker_compose.py
+++ b/docker_compose.py
@@ -142,4 +142,4 @@ if __name__ == "__main__":
 		with open(args.output, "w") as out:
 			json.dump(overview, out, indent=1, sort_keys=True)
 	else:
-		print(json.dumps(overview, indent=1))
\ No newline at end of file
+		print(json.dumps(overview, indent=1))
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..297536b
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,58 @@
+Docker Update
+=============
+
+Try to show updates for your used docker images.
+
+
+Requirements
+------------
+
+TODO
+
+You need a directory containing your service directories. These services must have a docker-compose.yml to get checked.
+
+Example:
+```
+└── services
+    ├── bitpoll.wiai.de
+    │   ├── docker
+    │   ├── docker-compose.yml
+    ├── dockerui
+    │   ├── docker-compose.yml
+    └── zitate
+        └── docker-compose.yml
+```
+
+If there are files or directories without a docker-compse.yml, it will just notify you and ignore it. 
+
+
+
+Usage
+----
+
+Modify mount of services directory. Mount your directory as `/services`.
+
+```
+docker-compose up
+```
+
+Output file: `updates.json`
+
+
+Advantages
+----------
+
+* No access to Docker-Socket
+* tbc ...
+
+
+Alternatives
+------------
+
+* https://github.com/v2tec/watchtower
+* https://engineering.salesforce.com/open-sourcing-dockerfile-image-update-6400121c1a
+* https://stackoverflow.com/questions/26423515/how-to-automatically-update-your-docker-containers-if-base-images-are-updated
+* tbc ...
+
+
+
diff --git a/show_updateable.py b/show_updateable.py
index 7a9e0f6..e4a0ff9 100644
--- a/show_updateable.py
+++ b/show_updateable.py
@@ -52,5 +52,5 @@ def main(args):
 if __name__=="__main__":
 	parser = docker_compose.args_setup("Show updates for docker-compose style services")
 	args = parser.parse_args()
+	print(args)
 	main(args)
-	
\ No newline at end of file