Update Sphinx configuration

- Remove "source_repository" setting
 - It generated a link to a 404 page in Github
- Change the Github icon to khiops-python

Author: folmos-at-orange

doc/conf.py

@@ -92,12 +92,11 @@
         "color-admonition-title-background--note": "#CC6100",
         "font-stack": "Helvetica Neue, Helvetica, sans-serif",
     },
-    "source_repository": "https://github.com/khiopsml/khiops/",
     # Sets the Github Icon (the SVG is embedded, copied from furo's repo)
     "footer_icons": [
         {
             "name": "GitHub",
-            "url": "https://github.com/khiopsml/khiops",
+            "url": "https://github.com/khiopsml/khiops-python",
             "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 0 0 16 8c0-4.42-3.58-8-8-8z"></path>