Add cli.md documentation for docker-pause and docker-unpause

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@docker.com> (github: SvenDowideit)

docs/sources/reference/commandline/cli.md

@@ -760,6 +760,12 @@ log entry.
 
     Lookup the public-facing port that is NAT-ed to PRIVATE_PORT
 
+## pause
+
+    Usage: docker pause CONTAINER
+
+    Pause all processes within a container
+
 ## ps
 
     Usage: docker ps [OPTIONS]
@@ -1263,6 +1269,12 @@ them to [*Share Images via Repositories*](
 
     Display the running processes of a container
 
+## unpause
+
+    Usage: docker unpause CONTAINER
+
+    Pause all processes within a container
+
 ## version
 
     Usage: docker version