doc: tls: added path property to tls.connect
doc: tls: added path property to tls.connect

In tls.connect a unix socket connection to a path may be made in
recent versions of node by specifying the value for the path
property.

Signed-off-by: Fedor Indutny <e39d94bae70283f13d24c278e04952d6dad9384b@indutny.com>

dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node