Fixed cache_store name used in adding other modules section of api app documentation. [ci skip]
Fixed cache_store name used in adding other modules section of api app documentation. [ci skip]

- Using `mem_cached_store` results in an exception as lib/active_support/cache.rb:106:in `rescue in retrieve_store_class': Could not find cache store adapter for mem_cached_store (cannot load such file -- active_support/cache/mem_cached_store) (RuntimeError)
- Changed the name of cache_store as `mem_cache_store` instead of `mem_cached_store`

repinel/rails,palkan/rails,jeremy/rails,notapatch/rails,EmmaB/rails-1,MSP-Greg/rails,starknx/rails,yalab/rails,prathamesh-sonpatki/rails,fabianoleittes/rails,schuetzm/rails,betesh/rails,yahonda/rails,esparta/rails,prathamesh-sonpatki/rails,gauravtiwari/rails,yawboakye/rails,Stellenticket/rails,prathamesh-sonpatki/rails,Envek/rails,kddeisz/rails,yahonda/rails,Erol/rails,joonyou/rails,kddeisz/rails,georgeclaghorn/rails,eileencodes/rails,fabianoleittes/rails,lcreid/rails,arunagw/rails,repinel/rails,BlakeWilliams/rails,bogdanvlviv/rails,yhirano55/rails,Envek/rails,Erol/rails,tgxworld/rails,lcreid/rails,yahonda/rails,kmcphillips/rails,starknx/rails,arunagw/rails,Stellenticket/rails,rails/rails,betesh/rails,MSP-Greg/rails,MSP-Greg/rails,prathamesh-sonpatki/rails,yhirano55/rails,tgxworld/rails,tjschuck/rails,Vasfed/rails,Vasfed/rails,yawboakye/rails,tjschuck/rails,EmmaB/rails-1,tjschuck/rails,Stellenticket/rails,repinel/rails,joonyou/rails,palkan/rails,Vasfed/rails,BlakeWilliams/rails,fabianoleittes/rails,jeremy/rails,Edouard-chin/rails,betesh/rails,Erol/rails,yhirano55/rails,georgeclaghorn/rails,georgeclaghorn/rails,lcreid/rails,arunagw/rails,palkan/rails,tjschuck/rails,eileencodes/rails,rails/rails,iainbeeston/rails,yalab/rails,Vasfed/rails,notapatch/rails,gauravtiwari/rails,iainbeeston/rails,tgxworld/rails,rails/rails,eileencodes/rails,esparta/rails,kmcphillips/rails,starknx/rails,shioyama/rails,lcreid/rails,kddeisz/rails,Edouard-chin/rails,yhirano55/rails,BlakeWilliams/rails,BlakeWilliams/rails,joonyou/rails,Edouard-chin/rails,notapatch/rails,palkan/rails,yawboakye/rails,joonyou/rails,shioyama/rails,georgeclaghorn/rails,kddeisz/rails,schuetzm/rails,iainbeeston/rails,mechanicles/rails,mechanicles/rails,Envek/rails,schuetzm/rails,vipulnsward/rails,Envek/rails,schuetzm/rails,fabianoleittes/rails,kmcphillips/rails,rafaelfranca/omg-rails,EmmaB/rails-1,yahonda/rails,rails/rails,rafaelfranca/omg-rails,betesh/rails,Erol/rails,vipulnsward/rails,arunagw/rails,gauravtiwari/rails,jeremy/rails,bogdanvlviv/rails,kmcphillips/rails,Stellenticket/rails,yawboakye/rails,vipulnsward/rails,mechanicles/rails,esparta/rails,repinel/rails,Edouard-chin/rails,bogdanvlviv/rails,bogdanvlviv/rails,esparta/rails,vipulnsward/rails,jeremy/rails,rafaelfranca/omg-rails,yalab/rails,tgxworld/rails,mechanicles/rails,MSP-Greg/rails,shioyama/rails,notapatch/rails,yalab/rails,eileencodes/rails,shioyama/rails,iainbeeston/rails