Adding documentation for interceptors and observers
Adding documentation for interceptors and observers

carsonreinke/mail,pushrax/mail,schneems/mail,pjskennedy/mail,kaineer/mail,kaineer/mail,missive/mail,benmmurphy/mail,kainlite/mail,schepedw/mail,schepedw/mail,jeremy/mail,agaridata/mail,smallspark/mail,0x00evil/mail,wktk/mail,jonkgrimes/mail,zacholauson/mail,planio-gmbh/mail,yujinakayama/mail,pjskennedy/mail,jeremy/mail,schneems/mail,kert-io/mail,kert-io/mail,kjg/mail,kjg/mail,agaridata/mail,carsonreinke/mail,owenr/mail,benmmurphy/mail,0x00evil/mail,pascalbetz/mail,smallspark/mail,pushrax/mail,mikel/mail,EdwardPantoja/mail,zacholauson/mail,wktk/mail,jeremyevans/mail,jeremyevans/mail,EdwardPantoja/mail,Schniz/mail,jonkgrimes/mail