Add a sponsor prospectus

![2014-06-26 at 5 09 pm](https://cloud.githubusercontent.com/assets/711717/3405536/995ba068-fd7e-11e3-8d72-0510a3f667b8.png)
![2014-06-26 at 5 09 pm](https://cloud.githubusercontent.com/assets/711717/3405539/a52b5b5e-fd7e-11e3-9d22-ee20cdafacd0.png)

So the objective to RailsBridge and DevChix is to create a space that are open and welcoming to women. The only way we can do that is by making them somewhat inclusive which is why I said if you'd be more comfortable not making these officially sponsored events then I understand that and I am happy to help. The DevChix dinners we usually let guys come as guests of female attendees and same with RailsBridge. It has happened in the past when these restrictions were not put in place that we had significantly more men than women come.. so it just doesn't work to open them all the way up like that. :/