Fix second meetup description: dash, commas, typos

Based on (this)[http://punktuaciya.academic.ru/606/%E2%86%91%D0%9F%D1%80%D0%B8%D0%BB%D0%BE%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5_3].
![i-have-no-idea-what-im-doing-dog](https://cloud.githubusercontent.com/assets/1506905/4965165/bb8d3fec-6788-11e4-9e1b-0e278d328d68.jpg)