Redfish cheatsheet: Fix up ServiceRoot section

Clarify this is the Redfish Service Root.
Redfish in all its documentation intentionally calls this the Service
Root.

From https://redfish.dmtf.org/redfish/schema_index:
"The ServiceRoot schema describes the root of the Redfish Service,
located at the '/redfish/v1' URI. All other Resources accessible through
the Redfish interface on this device are linked directly or indirectly
from the Service Root."

The Service Root requires no authentication so remove -b.
No where else in this file is a cookie set or used.

Change-Id: I47b87b14c8d118c34889452a3775bf35bbc658fe
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/REDFISH-cheatsheet.md b/REDFISH-cheatsheet.md
index 56ccb8a..1aa032b 100644
--- a/REDFISH-cheatsheet.md
+++ b/REDFISH-cheatsheet.md
@@ -2,10 +2,10 @@
 This document is intended to provide a set of [Redfish][1] client commands for OpenBMC usage.
 (Using CURL commands)
 
-## Query Root
+## Query Redfish Service Root
 ```
 export bmc=xx.xx.xx.xx
-curl -b cjar -k https://${bmc}/redfish/v1
+curl -k https://${bmc}/redfish/v1
 ```
 
 ---