Update feature_request.md

Author: Varun Shenoy

.github/ISSUE_TEMPLATE/feature_request.md

@@ -16,5 +16,8 @@ A clear and concise description of what you want to happen.
 **Describe alternatives you've considered**
 A clear and concise description of any alternative solutions or features you've considered.
 
+**Optional, but highly recommended**
+Leave us a [Loom](www.loom.com) so the community can better understand what you want to bring to CardinalKit in a more visual and personal way.
+
 **Additional context**
 Add any other context or screenshots about the feature request here.