Add templates for bug reports and feature requests, and a link to the…

… mailing list for support queries

.github/ISSUE_TEMPLATE/1_report_bug.yml

@@ -0,0 +1,62 @@
+name: Report a bug
+description: Report a bug in rsnapshot
+labels: [bug]
+body:
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: Checklist
+      description: Carefully read and work through this check list
+      options:
+        - label: I'm reporting a bug
+          required: true
+        - label: I've searched the [bugtracker](https://github.com/rsnapshot/rsnapshot/issues) for similar issues, including closed ones.
+          required: true
+  - type: textarea
+    id: what-i-did
+    attributes:
+      label: What did you do?
+      description: What steps should we follow to reproduce the problem?
+    validations:
+      required: true
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      description: Describe exactly what happened
+    validations:
+      required: true
+  - type: textarea
+    id: what-i-expected
+    attributes:
+      label: What did you expect to happen
+      description: What do you think _should have_ happened?
+    validations:
+      required: true
+  - type: textarea
+    id: configuration
+    attributes:
+      label: My configuration
+      description: "Copy n paste your config here. This shell snippet may be useful for stripping blank lines and comments: `sed 's/ *#.*//' /path/to/rsnapshot.conf | grep .`"
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Environment
+      description: |
+        examples:
+          - **server OS**: FreeBSD 12
+          - **snapshot_root filesystem**: ZFS
+      value: |
+          OS:
+          Filesystem:
+      render: markdown
+    validations:
+      required: false
+  - type: textarea
+    id: other-info
+    attributes:
+      label: Other information
+      description: Any other useful information?
+      placeholder: For example a snippet from your logs
+

.github/ISSUE_TEMPLATE/2_feature_request.yml

@@ -0,0 +1,37 @@
+name: Feature request
+description: Request a feature to be added or changed in rsnapshot
+labels: [feature]
+body:
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: Checklist
+      description: Carefully read and work through this check list
+      options:
+        - label: I'm asking for a feature to be changed or added
+          required: true
+        - label: I've searched the [bugtracker](https://github.com/rsnapshot/rsnapshot/issues) for similar issues, including closed ones.
+          required: true
+        - label: I realise that rsnapshot is stable software and most feature requests will be rejected
+          required: true
+  - type: textarea
+    id: what-i-want
+    attributes:
+      label: My suggestion is ...
+      description: What would you like to see changed or added?
+    validations:
+      required: true
+  - type: textarea
+    id: why-i-want-it
+    attributes:
+      label: Why I want it
+      description: Why would this be useful?
+    validations:
+      required: true
+  - type: textarea
+    id: why-in-rsnapshot
+    attributes:
+      label: Why should this be in rsnapshot and not implemented using some external tool?
+      description: What other approaches have you considered and why have you rejected them?
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Get support on the mailing list
+    url: https://sourceforge.net/p/rsnapshot/mailman/rsnapshot-discuss/
+    about: Join the mailing list for community support