no proxy directory

[maxgurewitz]

The README refers to a proxy directory, which does exist in cadence-ruby, but doesn't appear in this project.

https://github.com/coinbase/cadence-ruby/tree/master/proxy

The link in the README is also broken, because the directory does not exist.

[antstorm]

@maxgurewitz thanks for pointing out, remove the references. Bear in mind this is not yet ready