Update Github site to include link to calendar for TDC meetings

[darrelmiller]

Update Readme to include link to google calendar of meetings

[tedepstein]

I'll update readme to include the google calendar link. @darrelmiller , can you please point me to the gcal URL?

[darrelmiller]

@tedepstein Apparently I can't add you as an assignee at the moment. Consider yourself assigned :-)

[tedepstein]

Consider yourself assigned :-)

OK, will do.

(@webron , can you give me the access level I need so I can have issues assigned to me?)