Update README.md

README.md

@@ -10,7 +10,7 @@ While this currently serves the diagrams via HTTP, it could easily be manipulate
 
 Run the container:
 ```
-docker run -d --name mermaid-server -p 80:80 tomwright/mermaid-server:latest --allow-all-origins=true
+docker run -d --name mermaid-server -p 80:80 tomwright/mermaid-server:latest
 ```
 
 ### Manually as a go command
@@ -51,4 +51,4 @@ curl --location --request GET 'http://localhost:80/generate?data=graph%20LR%0A%0
 ### Caching
 
 All generated diagram input and output will be cached for 1 hour. The cache time is reset whenever a cached diagram is accessed.
-
+