fix max_levels and description
fix max_levels and description

Impactstory/sherlockoa,Impactstory/sherlockoa,Impactstory/citeas-api,Impactstory/citeas-api,Impactstory/impactstory-tng,Impactstory/oadoi,Impactstory/citeas-api,Impactstory/oadoi,Impactstory/impactstory-tng,Impactstory/impactstory-tng,Impactstory/oadoi