The “Let’s Encrypt™ SSL” page was pretty easy to use. Even editing the .htaccess file was easy. However, in my directory, I already had that file. I am guessing it was because it’s a WordPress site? I renamed the original and created a new file based on the directions. It worked perfectly.
I created a new post on subdomain (https://camp.learn4growth.com) and added a picture of the Let’s Encrypt page.