Update active_record_querying.md
Update active_record_querying.md

Fixed a typo in enums comment
kddeisz/rails,rails/rails,EmmaB/rails-1,yawboakye/rails,eileencodes/rails,lcreid/rails,EmmaB/rails-1,Vasfed/rails,bogdanvlviv/rails,kmcphillips/rails,Envek/rails,Erol/rails,Erol/rails,Edouard-chin/rails,yalab/rails,schuetzm/rails,betesh/rails,georgeclaghorn/rails,eileencodes/rails,vipulnsward/rails,betesh/rails,esparta/rails,schuetzm/rails,lcreid/rails,tgxworld/rails,betesh/rails,yahonda/rails,joonyou/rails,yawboakye/rails,kmcphillips/rails,vipulnsward/rails,rails/rails,MSP-Greg/rails,Vasfed/rails,lcreid/rails,yahonda/rails,yalab/rails,yawboakye/rails,EmmaB/rails-1,tgxworld/rails,esparta/rails,Erol/rails,joonyou/rails,lcreid/rails,Edouard-chin/rails,eileencodes/rails,vipulnsward/rails,bogdanvlviv/rails,Edouard-chin/rails,joonyou/rails,kddeisz/rails,Edouard-chin/rails,georgeclaghorn/rails,Stellenticket/rails,esparta/rails,schuetzm/rails,yalab/rails,kmcphillips/rails,Envek/rails,Envek/rails,yalab/rails,georgeclaghorn/rails,rails/rails,tgxworld/rails,Stellenticket/rails,eileencodes/rails,bogdanvlviv/rails,kddeisz/rails,georgeclaghorn/rails,betesh/rails,kddeisz/rails,Envek/rails,MSP-Greg/rails,tjschuck/rails,vipulnsward/rails,yahonda/rails,MSP-Greg/rails,Vasfed/rails,tjschuck/rails,joonyou/rails,Stellenticket/rails,schuetzm/rails,MSP-Greg/rails,esparta/rails,kmcphillips/rails,BlakeWilliams/rails,yahonda/rails,rails/rails,BlakeWilliams/rails,BlakeWilliams/rails,Vasfed/rails,BlakeWilliams/rails,tjschuck/rails,tjschuck/rails,bogdanvlviv/rails,yawboakye/rails,Stellenticket/rails,Erol/rails,tgxworld/rails