Fixing issues in command ordering. Adding index.md

Adjust bullets
Entering Seb's comments

Signed-off-by: Mary Anthony <mary@docker.com>
Upstream-commit: b44ef2b306c56dad16500c3738b0f29ec0f34635
Component: engine

components/engine/docs/reference/commandline/attach.md

@@ -5,7 +5,6 @@ description = "The attach command description and usage"
 keywords = ["attach, running, container"]
 [menu.main]
 parent = "smn_cli"
-weight=1
 +++
 <![end-metadata]-->
 
@@ -89,4 +88,3 @@ process is returned by the `docker attach` command to its caller too:
     13
     $ docker ps -a | grep test
     275c44472aeb        debian:7            "/bin/bash"         26 seconds ago      Exited (13) 17 seconds ago                         test
-