after you issued your token, you can then add sell orders to any pair you like.
example:
ASSET_OPEN.BTC (if you want investors buying in with BTC)
ASSET_USD for a stable alternative.
or just any other market pair, there are more options to invest than you'll find in most other ICO.
Excellent thanks for the great tip @ash, I'll be sure to add this in an updated version soon.