Webmaster Tools Errors Missing: author Missing: updated

Hi,

Love the theme! And thanks for you help in another issue.

Something I’m trying to figure out and hoped you could offer assistance.

Webmaster tools is giving error for missing items it requires.

Missing: author
Missing: updated

There is a good write up on the issue and how to fix it but I’m not finding the areas on Mon Cahier to make the fixes.

https://www.acceleratormarketing.com/trench-report/google-analytics-errors-and-structured-data/

Any help is appreciated.
??