Reinstate note about all PRs receiving review

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 84b7c0b..91bdcb3 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,6 +1,7 @@
 Contributing
 ============
-We gratefully accept bug reports and contributions from the community.
+We gratefully accept bug reports and contributions from the community. All PRs are reviewed by the project team / community, and may need some modifications to
+be accepted.
 
 Quick Checklist for PR contributors
 -----------------------------------