add issue template

.forgejo/issue_template/config.yml

@@ -0,0 +1,2 @@
+blank_issues_enabled: false
+

.forgejo/issue_template/default.yml

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+name: 'New workflow  / user story'
+about: 'New ticket for the requirements gathering process for the Red Hat BugZilla replacement'
+title: 'Workflow: <short summary>'
+
+body:
+  - type: 'markdown'
+    id: 'hints'
+    attributes:
+      value: >
+        Please select a tag (or multiple tags) for this ticket that describe(s)
+        best which project area it is related to (if no existing tag matches
+        this workflow, new tags can be created as needed).
+        
+        Before submitting a new workflow, please check if equivalent workflow
+        has already been submitted. If this is the case, leaving a "👍" reaction
+        on the existing ticket helps indicate that this workflow is important to
+        multiple groups / people.
+      visible: ['form']
+
+  - type: 'textarea'
+    id: 'description'
+    attributes:
+      label: 'Workflow description'
+      placeholder: >
+        Description of the workflow as it currently works on Red Hat BugZilla.
+    validations:
+      required: true
+
+  - type: 'textarea'
+    id: 'alternatives'
+    attributes:
+      label: 'Potential alternatives'
+      placeholder: >
+        If the workflow described above cannot be replicated 1:1 in the system
+        that replaces the Red Hat BugZilla instance, could it be adapted to
+        a different system (for example, using a tracking project on the Fedora
+        Forge instead)?
+    validations:
+      required: false
+