Tidy commercial switches section.
Tidy commercial switches section.

* Remove sections that add nothing over the Working with Real Hardware section.
* Link to docs/vendors directory.

gizmoguy/faucet,wackerly/faucet,faucetsdn/faucet,wackerly/faucet,gizmoguy/faucet,mwutzke/faucet,shivarammysore/faucet,faucetsdn/faucet,isomer/faucet,Bairdo/faucet,anarkiwi/faucet,byllyfish/faucet,trungdtbk/faucet,REANNZ/faucet,anarkiwi/faucet,isomer/faucet,Bairdo/faucet,trungdtbk/faucet,REANNZ/faucet,trentindav/faucet,shivarammysore/faucet,trentindav/faucet,byllyfish/faucet,mwutzke/faucet