Fixing issues in command ordering. Adding index.md

Adjust bullets
Entering Seb's comments

Signed-off-by: Mary Anthony <mary@docker.com>

docs/reference/commandline/pull.md

@@ -5,7 +5,6 @@ description = "The pull command description and usage"
 keywords = ["pull, image, hub, docker"]
 [menu.main]
 parent = "smn_cli"
-weight=1
 +++
 <![end-metadata]-->
 
@@ -50,4 +49,3 @@ use `docker pull`:
     # manually specifies the path to the default Docker registry. This could
     # be replaced with the path to a local registry to pull from another source.
     # sudo docker pull myhub.com:8080/test-image
-