Standardized formatting of CLI reference commands

Command name should be a H1

Only Description, Examples, and Related Commands should be H2

Changed 'Related information' heading to 'Related commands' since 99% it is only linking commands

Added some examples where relevant

Signed-off-by: Misty Stanley-Jones <misty@docker.com>
(cherry picked from commit 52df69f00d)

docs/reference/commandline/unpause.md

@@ -24,6 +24,8 @@ Options:
       --help   Print usage
 ```
 
+## Description
+
 The `docker unpause` command un-suspends all processes in the specified containers.
 On Linux, it does this using the cgroups freezer.
 
@@ -31,6 +33,12 @@ See the
 [cgroups freezer documentation](https://www.kernel.org/doc/Documentation/cgroup-v1/freezer-subsystem.txt)
 for further details.
 
-## Related information
+## Examples
+
+```bash
+$ docker unpause my_container
+```
+
+## Related commands
 
 * [pause](pause.md)