Add --pause to podman cp manpage and bash completions

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

completions/bash/podman

@@ -2388,6 +2388,7 @@ _podman_cp() {
 	  --help
 	  -h
 	  --extract
+	  --pause
      "
 	_complete_ "$boolean_options"
 }

docs/podman-cp.1.md

@@ -61,6 +61,10 @@ If you use a : in a local machine path, you must be explicit with a relative or
 
 Extract the tar file into the destination directory. If the destination directory is not provided, extract the tar file into the root directory.
 
+**--pause**
+
+Pause the container while copying into it to avoid potential security issues around symlinks. Defaults to *true*.
+
 ## ALTERNATIVES
 
 Podman has much stronger capabilities than just `podman cp` to achieve copy files between host and container.