Fix typo in test code and documentation

Changes:
    - Fix spelling mistake in code.

Tested:
    - Tested using codespell tool.

Change-Id: I9f74507049f936383bfc08cb335bb1ed9964c646
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/redfish/account_service/test_user_account.robot b/redfish/account_service/test_user_account.robot
index 793ff97..420d0e3 100644
--- a/redfish/account_service/test_user_account.robot
+++ b/redfish/account_service/test_user_account.robot
@@ -784,7 +784,7 @@
     ...  Redfish.Patch  ${REDFISH_BASE_URI}AccountService
     ...  body=${payload}  valid_status_codes=[${HTTP_OK},${HTTP_NO_CONTENT}]
 
-    # Setting authmethod properties using basic auth incase the former fails
+    # Setting authmethod properties using basic auth in case the former fails
     IF  ${status}==${FALSE}
         # Payload dictionary pre-process to match json formatting
         ${payload}=  Convert To String  ${payload}