Update 1-feature_request.md (#512)

Signed-off-by: Jan Kowalleck <[email protected]>

Author: jkowalleck

.github/ISSUE_TEMPLATE/1-feature_request.md

@@ -22,3 +22,9 @@ A clear and concise description of any alternative solutions or features you've
 ## Additional context
 
 Add any other context or screenshots about the feature request here.
+
+## Contribution 
+
+<!-- please choos eone by putting an `x` in the box `[ ]` -->
+- [ ] I am willing to provide an implementation
+- [ ] I will wait until somebody else implements it