fudge/topic_data/README.md

`topic_prefixes.txt` contains the 20 prefixes used at test time for starting the generations. 

`wordlists/` contains the wordlists for each of the 7 topics used during testing. The heldout bags used to evaluate the generalization of the topic words to other related words are in `test_wordlists/`. `val_wordlists/` contains just one extra wordlist used for tuning.