Update issue templates

Author: dineshba

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,23 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: Add newAPI function
+labels: enhancement
+assignees: ''
+
+---
+
+// Description of the new API
+
+API
+
+```go
+input := inputCollection
+var output outputType
+
+godash.NewAPI(input, ...)
+
+fmt.Println(output)
+
+// Output: your output here
+```