Update document formatting and packaging code

* Refactored code and Makefile to support new docs layout
* Removed some old code packaging code
* Add Readme.md to document what we're doing

Signed-off-by: Jhon Honce <jhonce@redhat.com>
Signed-off-by: baude <bbaude@redhat.com>

docs/source/markdown/podman-system-prune.1.md

@@ -0,0 +1,37 @@
+% podman-system-prune(1)
+
+## NAME
+podman\-system\-prune - Remove all unused container, image and volume data
+
+## SYNOPSIS
+**podman system prune** [*options*]
+
+## DESCRIPTION
+**podman system prune** removes all unused containers (both dangling and unreferenced), pods and optionally, volumes from local storage.
+
+With the `all` option, you can delete all unused images.  Unused images are dangling images as well as any image that does not have any containers based on it.
+
+By default, volumes are not removed to prevent important data from being deleted if there is currently no container using the volume. Use the --volumes flag when running the command to prune volumes as well.
+
+## OPTIONS
+**--all**, **-a**
+
+Remove all unused images not just dangling ones.
+
+**--force**, **-f**
+
+Do not prompt for confirmation
+
+**--help**, **-h**
+
+Print usage statement
+
+**--volumes**
+
+Prune volumes not used by at least one container
+
+## SEE ALSO
+podman(1), podman-image-prune(1), podman-container-prune(1), podman-pod-prune(1), podman-volume-prune(1)
+
+## HISTORY
+February 2019, Originally compiled by Dan Walsh (dwalsh at redhat dot com)