RTD base url

Author: amyreese

docs/conf.py

@@ -18,6 +18,7 @@
 # -- Project information -----------------------------------------------------
 
 import datetime
+import os
 
 project = "attribution"
 copyright = f"{datetime.date.today().year}, Amethyst Reese"
@@ -55,6 +56,9 @@
 intersphinx_mapping = {"python": ("https://docs.python.org/3", None)}
 master_doc = "index"
 
+# Set canonical URL from the Read the Docs Domain
+html_baseurl = os.environ.get("READTHEDOCS_CANONICAL_URL", "")
+
 # -- Options for HTML output -------------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for