Docs on accessing the loose_parser in a node environment

[mrjoelkemp]

The docs state the link between require('acorn') and dist/acorn.js, but I see no mention of accessing dist/loose_parser via a require interface.

Previously, back in the 0.x days, I could access the loose parser via require('acorn/acorn_loose');. Unsure and confused about how to do it now.

[RReverser]

require('acorn/dist/acorn_loose') should do the trick. Let me know if that doesn't work.

[mrjoelkemp]

That works fine @RReverser. Thanks! I'll submit a PR that adds this to the readme.