Description for SenecaJS duplicated into post-mortem debugging description

Hey — was just passing by and I saw this:

![screen shot 2016-02-28 at 10 31 26 pm](https://cloud.githubusercontent.com/assets/37303/13387407/07e061c6-de6b-11e5-9c2b-88575699fa3f.png)

It looks like somehow the [description is being shared](https://github.com/nodeschool/nodeschool.github.io/blob/master/index.html#L406-L415), possibly?

Thanks for your rad work! :clap: :sparkles:
