Added info the README about enabled HTML tags.
Added info the README about enabled HTML tags.

michaelBenin/iodocs,kapost/iodocs,kapost/iodocs,mashery/iodocs,BrandonE/tabroom-docs,mashery/iodocs,adzerk/iodocs,adzerk/ratatoskr,pigate/iodocs,robksawyer/minnow-iodocs,JonathanMatthey/r29iodocs,sensibill/iodocs,mansilladev/iodocs,nishant8BITS/iodocs,nishant8BITS/iodocs,sensibill/iodocs,robksawyer/minnow-iodocs,adzerk/iodocs,mansilladev/iodocs,poupougnac/iodocs,pigate/iodocs,devnieL/pdtp-iodocs,1602/iodocs,ccollins0601/iodocs,poupougnac/iodocs,devnieL/pdtp-iodocs,Tom-Tom/misterdatadoc,Strive-Labs/iodocs,ccollins0601/iodocs,adzerk/ratatoskr,halp-me/iodocs,Strive-Labs/iodocs,sensibill/iodocs