add html_context in conf.py to show edit on GH link

Author: adiati98

docs/conf.py

@@ -62,6 +62,16 @@
 
 templates_path = ['_templates']
 
+# GH Edit button
+
+html_context = {
+    "display_github": True,  # Integrate GitHub
+    "github_user": "mautic",  # Username
+    "github_repo": "developer-documentation-new",  # Repository name
+    "github_version": "5.x/",  # Branch name
+    "conf_py_path": "/docs/",  # Path in the repository to conf.py
+}
+
 # -- Options for HTML output -------------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for