Network suite name change

This change includes:
    1. Change in network suite name.
    2. Update README.md.

This resolves openbmc/openbmc-test-automation#1450

Change-Id: Id2559e8b806971af0664d892341470004ad16c8f
Signed-off-by: Prashanth Katti <prkatti1@in.ibm.com>
diff --git a/README.md b/README.md
index 43de646..ed3c710 100644
--- a/README.md
+++ b/README.md
@@ -104,7 +104,8 @@
 
 `mnfg/`: Contains test cases for factory reset (DHCP mode) and PGOOD testing.
 
-`network/`: Contains test cases for network testing.
+`network/`: Contains test cases for network testing. It covers IPv4 in static mode
+            and in DHCP mode.
 
 `snmp/`: Contains test cases for SNMP (Simple Network Management Protocol)
          configuration testing.
diff --git a/network/test_network.robot b/network/test_bmc_network.robot
similarity index 100%
rename from network/test_network.robot
rename to network/test_bmc_network.robot