Update pull_request_template.md (#1202)

Author: sb-benohe

.github/pull_request_template.md

@@ -54,7 +54,7 @@ Submitters should complete the following questionnaire:
     * Does this PR add any new software dependencies? **Yes** or **No**.
     * Does this PR modify or invalidate any of our security controls? **Yes** or **No**.
     * Does this PR store or transmit data that was not stored or transmitted before? **Yes** or **No**.
-* If the answer to any of the questions below is **Yes**, then please add StewGoin as a reviewer, and note that this PR should not be merged unless/until he also approves it.
+* If the answer to any of the questions below is **Yes**, then please add a Security Engineer and ISSO  as a reviewer, and note that this PR should not be merged unless/until he also approves it.
     * Do you think this PR requires additional review of its security implications for other reasons? **Yes** or **No**.