Update template

Author: MariusStorhaug

.github/ISSUE_TEMPLATE/New-Project.yml

@@ -57,3 +57,25 @@ body:
       default: 0
     validations:
       required: true
+  - type: checkboxes
+    id: operating-systems
+    attributes:
+      label: Which operating systems have you used?
+      description: You may select more than one.
+      options:
+        - label: macOS
+        - label: Windows
+        - label: Linux
+  - type: textarea
+    id: repro
+    attributes:
+      label: Reproduction steps
+      description: "How do you trigger this bug? Please walk us through it step by step."
+      value: |
+        1.
+        2.
+        3.
+        ...
+      render: bash
+    validations:
+      required: true