Update conf.py: change redirect from gitlab.io to spam-project.dev/docs/

docs/source/conf.py

@@ -425,5 +425,5 @@ copybutton_prompt_is_regexp = True
 
 # redirect
 redirects = {
-    "*": "https://spam-project.gitlab.io/spam/",
+    "*": "https://www.spam-project.dev/docs/",
 }