Added Issue_Templates to distinguish between bug_reports, feature_requests, and doubts.

.github/ISSUE_TEMPLATES/bug_report.yaml

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+name: Bug report
+description: Create a report to help us improve
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: Describe the bug
+      description: A clear and concise description of what the bug is, and any additional context.
+      placeholder: Tell us what you see!
+    validations:
+      required: true
+  - type: textarea
+    id: repro-steps
+    attributes:
+      label: To Reproduce
+      description: Steps to reproduce the behavior.
+      placeholder: |
+        1. Fetch a '...'
+        2. Update the '....'
+        3. See error
+    validations:
+      required: true
+  - type: textarea
+    id: code-snippets
+    attributes:
+      label: Code snippets
+      description: If applicable, add code snippets to help explain your problem.
+      render: Python
+    validations:
+      required: false
+  - type: input
+    id: os
+    attributes:
+      label: OS
+      placeholder: macOS
+    validations:
+      required: true
+  - type: input
+    id: language-version
+    attributes:
+      label: Python version
+      placeholder: Python v3.7.1
+    validations:
+      required: false
+  - type: input
+    id: gprMax-version
+    attributes:
+      label: gprMax version
+      placeholder: gprMax v.3.1.6
+    validations:
+      required: false

.github/ISSUE_TEMPLATES/config.yaml

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+blank_issues_enabled: false
+contact_links:
+  - name: gprMax support
+    url: https://groups.google.com/g/gprmax
+    about: |
+      Please only file issues here that you believe represent actual bugs or feature requests for the gprMax software.
+      If you're having general trouble with using gprMax, please visit our help center to get support.

.github/ISSUE_TEMPLATES/feature_request.yaml

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+name: Feature request
+description: Suggest an idea for gprMax software
+labels: ["feature-request"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this feature request! Please note, we may not able to accommodate all feature requests given limited bandwidth but we appreciate you taking the time to share with us how to improve the gprMax software.
+  - type: textarea
+    id: feature
+    attributes:
+      label: Describe the feature or improvement you're requesting
+      description: A clear and concise description of what you want to happen.
+    validations:
+      required: true
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional context
+      description: Add any other context about the feature request here.