Clarify the default REST server

The current wording makes it seem 2.6 is in the future.
2.6 was released in Feb 2019 and 2.7 in Aug 2019.
bmcweb was the default REST server starting with 2.7

Change-Id: Ie64e9be52d7dcfa713d2681375b6998e33e9ec7f
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/REST-cheatsheet.md b/REST-cheatsheet.md
index ccf6b89..a27f3b3 100644
--- a/REST-cheatsheet.md
+++ b/REST-cheatsheet.md
@@ -11,8 +11,8 @@
 requires either an authentication token or the username and password passed in
 as part of the URL for non-read-only methods.
 
-The phosphor-rest server will no longer be the default REST server after the
-2.6 OpenBMC release.
+Starting with the 2.7 OpenBMC release (August 2019), bmcweb is the default REST
+server.
 
 ### Establish REST connection session
 * Using just the cookie jar files for the phosphor-rest server:
@@ -222,4 +222,4 @@
    ```
    $ curl -k -H "X-Auth-Token: $token" -H 'Content-Type: application/json' -X PUT -d '{"data":1}' https://${bmc}/xyz/openbmc_project/software/attr/FieldModeEnabled
    ```
-    and then reboot BMC.
\ No newline at end of file
+    and then reboot BMC.