Fix coding guideline documentation typo

Change-Id: I1820782d33495ba9689699d7998dca4a26096137
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/docs/redfish_coding_guidelines.md b/docs/redfish_coding_guidelines.md
index 96d82f1..3a8cb89 100644
--- a/docs/redfish_coding_guidelines.md
+++ b/docs/redfish_coding_guidelines.md
@@ -83,7 +83,7 @@
 reasons:
 -	It simplifies the code base.
 -	It allows calling keywords and testcases to keep control over login
-    paramters like USERNAME, PASSWORD, etc.  Consider the following example:
+    parameters like USERNAME, PASSWORD, etc.  Consider the following example:
 
     ```
     # Login to redfish with non-standard username/password.