DOC: adds list of available web ui addresses (#509)
DOC: adds list of available web ui addresses (#509)

* DOC: adds list of available web UI pages

* BUG: fixes typo

mrocklin/distributed,broxtronix/distributed,dask/distributed,mrocklin/distributed,dask/distributed,blaze/distributed,blaze/distributed,broxtronix/distributed,broxtronix/distributed,dask/distributed,dask/distributed,mrocklin/distributed,amosonn/distributed,amosonn/distributed,amosonn/distributed