I am running multisite for 5 sites. I have a theme where it doesn't have a text area at the top of the page but i want to put some introduction text on the homepage. I currently have all 5 sites using the same child theme to maintain the same look and layout.
What is the best way to add the custom text to the homepage for each site based on the domain? Would I do this somehow editing the child theme file(s) with a shortcode and functions.php?
I am a developer but pretty new to wordpress. A simple code example would be very helpful.
Bonus points and kudos if there is a way to make this a widget that can be edited in the admin so I can change the text outside of the code.