Add todo list to README
Add todo list to README

fengthedroid/heroes-of-the-storm-replay-parser,Oize/heroes-of-the-storm-replay-parser,Oize/heroes-of-the-storm-replay-parser,fengthedroid/heroes-of-the-storm-replay-parser,Oize/heroes-of-the-storm-replay-parser,karlgluck/heroes-of-the-storm-replay-parser