Significant updates to the schema RDoc page
Significant updates to the schema RDoc page

This removes old text saying not to use options when giving generic
types, and shows examples of all supported generic type options.

uhoh-itsmaciek/sequel,chef/sequel,uhoh-itsmaciek/sequel,freshpay/sequel,pfarrell/sequel,gferguson-gd/sequel,nju520/sequel,nicohvi/sequel,knut2/sequel,yazshel/sequel,offshore-safety/sequel,t-morgan/sequel,dennis-d/custom_sequel,knut2/sequel,nicohvi/sequel,mpalmer/sequel,mpalmer/sequel,bigfix/sequel,seeARMS/sequel,tmm1/sequel,davidbegin/sequel,t-morgan/sequel,offshore-safety/sequel,reubano/sequel,offshore-safety/sequel,beni55/sequel,yazshel/sequel,gferguson-gd/sequel,dennis-d/custom_sequel,freshpay/sequel,pfarrell/sequel,Marketcircle/sequel,reubano/sequel,beni55/sequel,nju520/sequel,seeARMS/sequel,davidbegin/sequel