Fix man and commandline docs

- missing help option in `docs/reference/commandline/*.md` (some files
  have it, the other I fixed didn't)
- missing `[OPTIONS]` in Usage description
- missing options
- formatting
- start/stop idempotence

Signed-off-by: Antonio Murdaca <amurdaca@redhat.com>

man/docker-commit.1.md

@@ -7,8 +7,8 @@ docker-commit - Create a new image from a container's changes
 # SYNOPSIS
 **docker commit**
 [**-a**|**--author**[=*AUTHOR*]]
-[**--help**]
 [**-c**|**--change**[=\[*DOCKERFILE INSTRUCTIONS*\]]]
+[**--help**]
 [**-m**|**--message**[=*MESSAGE*]]
 [**-p**|**--pause**[=*true*]]
 CONTAINER [REPOSITORY[:TAG]]