finagle/doc: Add documentation for RemoteInfo.Upstream.addr
finagle/doc: Add documentation for RemoteInfo.Upstream.addr

Add documentation for RemoteInfo.Upstream.addr

RB_ID=829407

BuoyantIO/finagle,adriancole/finagle,adriancole/finagle,sveinnfannar/finagle,spockz/finagle,koshelev/finagle,koshelev/finagle,sveinnfannar/finagle,spockz/finagle,sveinnfannar/finagle,luciferous/finagle,BuoyantIO/finagle,mkhq/finagle,adriancole/finagle,BuoyantIO/finagle,BuoyantIO/finagle,koshelev/finagle,mkhq/finagle,luciferous/finagle,BuoyantIO/finagle,sveinnfannar/finagle,koshelev/finagle,twitter/finagle,mkhq/finagle,mkhq/finagle,luciferous/finagle,mkhq/finagle,spockz/finagle,twitter/finagle,adriancole/finagle,koshelev/finagle,spockz/finagle,twitter/finagle,sveinnfannar/finagle,sveinnfannar/finagle,BuoyantIO/finagle,twitter/finagle,luciferous/finagle,mkhq/finagle,twitter/finagle,luciferous/finagle,spockz/finagle,koshelev/finagle,adriancole/finagle,luciferous/finagle,adriancole/finagle,spockz/finagle