README: Change meeting time from 10am to 2pm Pacific

Catch up with [1] now that we're having 2pm meetings two weeks in a
row.  There's also some earlier discussion in [2].

[1]: https://groups.google.com/a/opencontainers.org/forum/#!topic/dev/VlwOuGh2y84
     Subject: OCI Meeting Times
     Date: Wed, 20 Jul 2016 01:39:33 +1000
     Message-ID: <CAOviyajs3feTFCatETgGPvwy7OubOOWvmJqof0yf1KO540nfHw@mail.gmail.com>
[2]: https://groups.google.com/a/opencontainers.org/forum/#!topic/dev/HXO-FplpEKM
     Subject: OCI Call Time
     Date: Wed, 1 Jun 2016 21:10:21 +1000
     Message-ID: <[email protected]>

Signed-off-by: W. Trevor King <[email protected]>

Author: wking

README.md

@@ -75,7 +75,7 @@ When in doubt, start on the [mailing-list](#mailing-list).
 
 ## Weekly Call
 
-The contributors and maintainers of all OCI projects have a weekly meeting Wednesdays at 10:00 AM (USA Pacific.)
+The contributors and maintainers of all OCI projects have a weekly meeting Wednesdays at 2:00 PM (USA Pacific).
 Everyone is welcome to participate via [UberConference web][UberConference] or audio-only: 415-968-0849 (no PIN needed.)
 An initial agenda will be posted to the [mailing list](#mailing-list) earlier in the week, and everyone is welcome to propose additional topics or suggest other agenda alterations there.
 Minutes are posted to the [mailing list](#mailing-list) and minutes from past calls are archived to the [wiki](https://github.com/opencontainers/runtime-spec/wiki) for those who are unable to join the call.