Update REST-cheatsheet.md documentation

Added:
     - Factory reset the system using curl commands.

Change-Id: Ie8f2acde72cf3f7f88846fefbcc1a2d511ef39ee
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/REST-cheatsheet.md b/REST-cheatsheet.md
index 699f017..7067105 100644
--- a/REST-cheatsheet.md
+++ b/REST-cheatsheet.md
@@ -149,3 +149,22 @@
     $ curl -c cjar -b cjar -k -H "Content-Type: application/json" -X POST https://${bmc}/login -d "{\"data\": [ \"root\", \"0penBmc\" ] }"
     $ curl -c cjar -b cjar -k -H "Content-Type: application/json" -d "{\"data\": [\"abc123\"] }" -X POST  https://${bmc}/xyz/openbmc_project/user/root/action/SetPassword
     ```
+
+* Factory Reset:
+
+    - Factory reset host and BMC software:
+    ```
+    $ curl -c cjar -b cjar -k -H 'Content-Type: application/json' -X POST -d '{"data":[]}' https://${bmc}/xyz/openbmc_project/software/action/Reset
+    ```
+
+    - Factory reset network setting:
+    ```
+    $ curl -c cjar -b cjar -k -H 'Content-Type: application/json' -X POST -d '{"data":[]}' https://${bmc}/xyz/openbmc_project/network/action/Reset
+    ```
+
+    - Enable field mode:
+    ```
+    $ curl -c cjar -b cjar -k -H 'Content-Type: application/json' -X PUT -d '{"data":1}' https://${bmc}/xyz/openbmc_project/software/attr/FieldModeEnabled
+    ```
+
+    and then reboot BMC.