feat(misc) automatically assign feature-request tag to issues

…if they are reported as a feature request, of course.

.github/ISSUE_TEMPLATE/2-feature-request.md

@@ -1,7 +1,9 @@
 ---
 name: "Feature request"
 about: Suggest an idea for this project
-
+title: ''
+labels: 'feature-request'
+assignees: ''
 ---
 
 <!--