add intro text compliance twg

Signed-off-by: Toshaan Bharvani <toshaan@vantosh.com>

content/groups/compliance.md

@@ -11,3 +11,10 @@ members:
 date: 2021-03-15
 draft: false
 ---
+
+The OpenPOWER Compliance Work Group will define OpenPOWER key interfaces that need to be compliant in a standard specification of compliance
+and define how to measure and document compliance pre-silicon and post-silicon.
+
+Subcommittees for each set of related key interfaces will be formed to address reference test harnesses and reference test suites.
+This will allow for focused effort by the experts and interested members of the related key interfaces.
+The importance of this Work Group is to be able to maintain software and hardware interoperability through following the compliance specifications.