README: Add repo description

Added a short description about the openpower-pnor-code-mgmt repo.

Change-Id: I86d1edcc10796c00468a96acc90aeda6ab896509
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/README.md b/README.md
index 44e811c..5e94931 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,12 @@
+# openpower-pnor-code-mgmt
+OpenPower PNOR (Processor NOR) Code Management provides a set of host software
+management applications for OpenPower systems. The host firmware is stored on
+the PNOR chip.
+More information can be found at
+[Software Architecture](https://github.com/openbmc/phosphor-dbus-interfaces/blob/master/xyz/openbmc_project/Software/README.md)
+or
+[Host Code Update](https://github.com/openbmc/docs/blob/master/code-update/host-code-update.md)
+
 ## To Build
 ```
 To build this package, do the following steps: