Add note of what revision of HTML 5 the entity decoding corresponds to
Add note of what revision of HTML 5 the entity decoding corresponds to

blat/simplepie,wikidi/simplepie,wikidi/simplepie,mblaney/simplepie,barryvdh/simplepie,blat/simplepie,Alexia/SimplePie,FreshRSS/simplepie,FreshRSS/simplepie,Alexia/SimplePie,Alkarex/simplepie,ropik/simplepie,songfj/simplepie,blat/simplepie,Alkarex/simplepie,simplepie/simplepie,barryvdh/simplepie,simplepie/simplepie,barryvdh/simplepie,skyzyx/simplepie,wikidi/simplepie,skyzyx/simplepie,mblaney/simplepie,gsnedders/complexpie,songfj/simplepie,ropik/simplepie,songfj/simplepie,Alkarex/simplepie