added docs to doc/api
added docs to doc/api

hynek/pyopenssl,reaperhulk/pyopenssl,sholsapp/pyopenssl,r0ro/pyopenssl,mhils/pyopenssl,aalba6675/pyopenssl,mitghi/pyopenssl,sorenh/pyopenssl,kjav/pyopenssl,r0ro/pyopenssl,mhils/pyopenssl,mschmo/pyopenssl,mitghi/pyopenssl,daodaoliang/pyopenssl,samv/pyopenssl,aalba6675/pyopenssl,hynek/pyopenssl,pyca/pyopenssl,reaperhulk/pyopenssl,adamwolf/pyopenssl