update "Get Bridges" instruction on the email we send out with GetTor email requests

Current version:

Step 3: Get Bridges (Optional)

   If you believe that Tor is blocked where you are, you can use bridges to connect
    to Tor.  Bridges are hidden Tor relays that can circumvent censorship.
    Tor Browser includes a list of built-in bridges, which you should  try first.
    You can activate built-in bridges inside of Tor Browser's settings, under the
    "Tor" menu.  If built-in bridges don't work, try requesting different bridges,
    which you can also do in the "Tor" menu inside Tor Browser's settings.

Update:

    You can activate built-in bridges inside of Tor Browser's settings, under the
    "Connection" menu.  If built-in bridges don't work, try requesting different bridges,
    which you can also do in the "Connection" menu inside Tor Browser's settings.

(thanks to @nina for noticing this!)