Update issue templates

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,17 +0,0 @@
----
-name: Feature request
-about: Suggest an idea for this project
-title: ''
-labels: enhancement
-assignees: ''
-
----
-
-**What is the feature you want to add?**
-
-**Why do you want to add this feature?**
-
-**How to implement this feature?**
-
-**Additional context**
-Add any other context or screenshots about the feature request here.