Rename Redfish validators and update README.md

Changes:
   - Replace dashes with underscores in:
       Redfish-JsonSchema-ResponseValidator.robot
       Redfish-Service-Validator.robot
   -Remove reference to network test in extended in README.md.

Signed-off-by: Steven Sombar <ssombar@us.ibm.com>
Change-Id: I0a663f0d6dc69a900206426bf0a587d6154a6524
diff --git a/README.md b/README.md
index a0f9a91..094c99a 100644
--- a/README.md
+++ b/README.md
@@ -103,8 +103,7 @@
           verification. The "tests" subdirectory uses legacy REST and will be
           deprecated at some point and therefore no longer supported.
 
-`extended/`: Contains test cases for boot testing, network testing,
-             code update testing etc.
+`extended/`: Contains test cases for boot testing, code update testing, etc.
 
 `systest/`: Contains test cases for HTX bootme, IO storage and EEH testing.
 
diff --git a/redfish/dmtf_tools/Redfish-JsonSchema-ResponseValidator.robot b/redfish/dmtf_tools/Redfish_JsonSchema_ResponseValidator.robot
similarity index 100%
rename from redfish/dmtf_tools/Redfish-JsonSchema-ResponseValidator.robot
rename to redfish/dmtf_tools/Redfish_JsonSchema_ResponseValidator.robot
diff --git a/redfish/dmtf_tools/Redfish-Service-Validator.robot b/redfish/dmtf_tools/Redfish_Service_Validator.robot
similarity index 100%
rename from redfish/dmtf_tools/Redfish-Service-Validator.robot
rename to redfish/dmtf_tools/Redfish_Service_Validator.robot