Update keyword documentation

Change-Id: If21a8adf3c5a783319d7f479dae65b357d846c51
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/security/test_bmc_connections.robot b/security/test_bmc_connections.robot
index b188cc0..c865308 100644
--- a/security/test_bmc_connections.robot
+++ b/security/test_bmc_connections.robot
@@ -303,7 +303,7 @@
 
 
 Login to GUI With Incorrect Credentials
-    [Documentation]  Login to GUI with wrong credentials.
+    [Documentation]  Attempt to login to GUI as root, providing incorrect password argument.
 
     Input Text  ${xpath_textbox_username}  root
     Input Password  ${xpath_textbox_password}  incorrect_password