Google calendar on Facebook

[OldJohn]

I am an administrator of a Facebook page for a charity. I also edit their web site.
I use a Google calendar to keep a note of all events and a read oly version of this is on the web site.
I realise that most people rely on the Facebook page and don’t look at the web site. In the past 28 days the Facebook page has had 9800 views and the website only 2600.
How can I make the Google calendar visible on the Facebook page?

In google calendar make your calendar public.
Copy the public calendar link.
Add the link to:
Your Facebook Page’s About section.
A pinned post.
Event announcements.

Visitors click the link and see your calendar in their browser.