Add 'updated' rich snippet information

[obenland]

When I run my site through the Google Rich Snippets Testing Tool[1], I receive the following for entries:

Warning: Missing required field "updated".

[1] http://www.google.com/webmasters/tools/richsnippets?url=http%3A%2F%2Fwww.codenoevil.com

I'm not sure however where in the theme to make the fix as different blogs say to add the necessary content in different places. Thanks!

http://wordpress.org/support/topic/theme-the-bootstrap-google-snippet-testing-tool-reports-warning-missing-required-field-updated

[obenland]

http://diymediahome.org/resolving-problems-with-googles-rich-snippets-testing-tool/