Indexing attribute on vocabularies

[jonthegeek]

Pre-trained models use 1-indexed vocabularies, but {torch} uses 0-indexed. Let's tag our vocabs so we can use those tags when they exist.

[jonathanbratt]

Other way around: {torch} uses 1-indexing, while almost everyone else uses 0-indexing for the ids. :)

[jonthegeek]

Er duh yes that's what I meant to type! Off-by-one errors strike my post about off-by-one errors!