Add GitHub integration to documentation

- Add "Edit on GitHub" and "View Source" buttons via Furo theme settings
- Add GitHub and Report Issue icons to documentation footer
- Create documentation-specific issue template for reporting docs bugs

Users can now easily edit documentation pages or report issues directly
from the ReadTheDocs site.

Underworld development team with AI support from Claude Code

Author: lmoresi

.github/ISSUE_TEMPLATE/docs-issue.md

@@ -0,0 +1,23 @@
+---
+name: Documentation Issue
+about: Report an error, typo, or improvement for the documentation
+title: '[Docs] '
+labels: documentation
+assignees: ''
+---
+
+## Page URL
+<!-- Paste the URL of the documentation page with the issue -->
+
+
+## Description
+<!-- Describe the problem or suggested improvement -->
+
+
+## Suggested Fix
+<!-- If you know how to fix it, describe the correction -->
+
+
+## Additional Context
+<!-- Any other information that might help -->
+

docs/conf.py

@@ -113,6 +113,34 @@
     },
     "sidebar_hide_name": False,
     "navigation_with_keys": True,
+    # GitHub integration - Edit/View Source buttons
+    "source_repository": "https://github.com/underworldcode/underworld3",
+    "source_branch": "development",
+    "source_directory": "docs/",
+    # Footer icons
+    "footer_icons": [
+        {
+            "name": "GitHub",
+            "url": "https://github.com/underworldcode/underworld3",
+            "html": """
+                <svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 16 16">
+                    <path fill-rule="evenodd" d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z"></path>
+                </svg>
+            """,
+            "class": "",
+        },
+        {
+            "name": "Report Issue",
+            "url": "https://github.com/underworldcode/underworld3/issues/new?labels=documentation&template=docs-issue.md",
+            "html": """
+                <svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 16 16">
+                    <path d="M8 9.5a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path>
+                    <path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Z"></path>
+                </svg>
+            """,
+            "class": "",
+        },
+    ],
 }
 
 # =============================================================================