RTD updates (#2240)

Re https://about.readthedocs.com/blog/2024/07/addons-by-default/

Co-authored-by: Sasha Romijn <[email protected]>

docs/conf.py

@@ -45,6 +45,20 @@ def _load_data(self, env, data_source, encoding):
 
 sys.path.append(os.getcwd())  # noqa
 
+
+# Updates for RTD changes
+# https://about.readthedocs.com/blog/2024/07/addons-by-default/
+
+# Define the canonical URL if you are using a custom domain on Read the Docs
+html_baseurl = os.environ.get("READTHEDOCS_CANONICAL_URL", "https://www.writethedocs.org")
+
+# Tell Jinja2 templates the build is running on Read the Docs
+if os.environ.get("READTHEDOCS", "") == "True":
+    if "html_context" not in globals():
+        html_context = {}
+    html_context["READTHEDOCS"] = True
+
+
 from _ext.core import (
     render_rst_with_jinja, override_template_load_context, set_html_context, unset_html_context
 )