<meta name="twitter:card" content="product">
<meta name="twitter:title" content="{{title}}">
<meta name="twitter:description" content="{{> about}}">
<meta name="twitter:image:src" content="http://enviroecon.org/img/logo-square.png">
<meta name="twitter:data1" content="{{eventDay event.start}}">
<meta name="twitter:label1" content="DATE">
<meta name="twitter:data2" content="{{#with event.venue.address}}{{city}}, {{region}}{{/with}}">
<meta name="twitter:label2" content="LOCATION">
<meta name="twitter:domain" content="enviroecon.org">

<meta name="twitter:card" content="product">
<meta name="twitter:title" content="{{title}} Conference">
<meta name="twitter:description" content="{{> about}}">
<meta name="twitter:image:src" content="http://enviroecon.org/img/logo-square.png">
<meta name="twitter:data1" content="{{eventDay event.start}}">
<meta name="twitter:label1" content="DATE">
<meta name="twitter:data2" content="{{#with event.venue.address}}{{city}}, {{region}}{{/with}}">
<meta name="twitter:label2" content="LOCATION">
<meta name="twitter:domain" content="enviroecon.org">

Update title in Twitter Card
Update title in Twitter Card
