Add berkeley computational resources

Hey - this is a small addition to the resources page.  It adds a short list of berkeley-specific resources that might be of interest to people currently residing here.  It is largely inspired by how common I send "you should check all of these things out" e-mails to people I talk to about data science, or to classes (e.g., SC bootcamps) that I teach.  

The list is by no means complete, and mostly meant to be a first step in eventually having a more complete and fleshed out list. 

Also note that this is also an experiment for me in forking.  Apologies if I messed something up but this is the first time I've worked with the "fork and pull" github method.