Add description for upcoming PoC2
user
```ruby
# Proof of Concept - insta-scaling
# ------
# So the title is obviously ~satirical, but the goal of this PoC is to show
# that with little effort, we can build a system atop DCell that can
# automatically configure itself to distribute load among its members and give
# some neat performance gains.
#
# A successful implementation will succeed in the following demo.
#
# 1) Build a basic website.
# 2) Using ab, show the requests per second that the webserver can manage.
# 3) Fire up the same project on another machine.  Perform no other configuration.
# 4) See rps ~double.
```
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