Add SECURITY.md file, linking to security policy
Add SECURITY.md file, linking to security policy

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