Docs: Add check for envvar to disable todos

Author: KrystalDelusion

docs/source/conf.py

@@ -56,6 +56,9 @@
     else:
         release = yosys_ver
         todo_include_todos = False
+elif os.getenv("YOSYS_DOCS_RELEASE"):
+    release = yosys_ver
+    todo_include_todos = False
 else:
     release = yosys_ver
     todo_include_todos = True