Update cheatsheets

tldr/docker-rmi

@@ -8,10 +8,6 @@ source: https://github.com/tldr-pages/tldr.git
 > Remove Docker images.
 > More information: <https://docs.docker.com/reference/cli/docker/image/rm/>.
 
-- Display help:
-
-`docker rmi`
-
 - Remove one or more images given their names:
 
 `docker rmi {{image1 image2 ...}}`
@@ -23,3 +19,7 @@ source: https://github.com/tldr-pages/tldr.git
 - Remove an image without deleting untagged parents:
 
 `docker rmi --no-prune {{image}}`
+
+- Display help:
+
+`docker rmi`