add note of unstyled default

Bump acorn from 5.7.3 to 5.7.4 (#3)

Bump minimist from 1.2.0 to 1.2.3 (#2)

Bump acorn from 5.7.3 to 5.7.4

Bump minimist from 1.2.0 to 1.2.3

update gif

bump v

(fix #1) default to unstyled

align usage gif

style gif

version number

update readme

style usage gif

update readme, add contributing

codesandbox link