fix(doc): is_group

Author: ForteScarlet

.github/workflows/doc-test.yml

@@ -19,6 +19,8 @@ env:
   # Add the variable below to upload Algolia indexes
   # Replace HI with the ID of the instance in capital letters
 #  ALGOLIA_ARTIFACT: algolia-indexes-HI.zip
+  IS_GROUP: true
+
 jobs:
   build:
     runs-on: ubuntu-latest