Add man page

This patch add a md file consumed by ronn(1) to generate man pages.
There is still some other comand line and funtions that need to be added
, however this first version is good for now

Signed-off-by: Victor Rodriguez <victor.rodriguez.bahena@intel.com>

psstop.1.md

@@ -0,0 +1,49 @@
+psstop(1) -- memory snapshot of the current processes based on /proc
+====================================================================
+
+## SYNOPSIS
+
+`psstop`
+
+## DESCRIPTION
+
+
+PPSTOP tracks the amount of memory from the process' proportional share of this
+mapping (Pss) and the proportional swap share of the mapping (SwapPss). The
+momory information came from smaps (/proc/PID/smaps). The /proc/PID/smaps is an
+extension based on maps, showing the memory consumption for each of the
+process's mappings.
+
+## SYNTAX
+
+`psstop` is meant to be directly executed from the
+command line as :
+
+    psstop
+
+    [...]
+
+    0 Kb: (sd-pam) (24051)
+    1122 Kb: tmux: server (31523)
+    4 Kb: bash (31524)
+    4 Kb: bash (31525)
+    4 Kb: vim (31684)
+    Total is 14958Kb (174 processes)
+
+## EXIT STATUS
+
+On success, 0 is returned, a non-zero failure code otherwise.
+
+## COPYRIGHT
+
+ * This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 3 or later of the License
+
+## SEE ALSO
+
+ * ps(1)
+
+ * free(1)
+
+