[easier if you have familiarity with node] review contributing docs and ensure project builds

IT would be nice to review our contributing docs and make sure they have all the info you need in order to build this project.

Task:

1. Clone this repo and read through the contributing md.
2. Try to build a working copy of im-tables. If you're unsure about anything please ask for help by mentioning @yochannah and make sure to add these notes to our contributing docs for the next person.
3. Make a PR with any changes you've made to the docs.

## if you want to pick up this task

0. Take a look at the [InterMine contributing guidelines](http://intermine.org/contributing/)
1. Comment on this issue stating that you intend to work on the task
2. When you're ready, add your work to the repo and create a pull request.

### What to do if you need help

Mention @yochannah, tweet [@yoyehudi](http://www.twitter.com/yoyehudi), pop by to say hi on [chat](http://chat.intermine.org) or if needed email yo@intermine.org. Don't forget we're usually only available during uk office hours and will not be able to respond at other times :)