spell check
From MoodleDocs
Follow these steps to install a spell check into your Moodle:
You can add a spell checker to your HTML editor if you install aspell 0.50 or later on your server, and enter the correct path to access the aspell binary in Administration > Server > System paths.
Here is a link to information about installing aspell on a Mac: https://docs.moodle.org/en/Configuring_aspell_on_Mac_OS_X
Here is a link to information about installing aspell on Windows: https://docs.moodle.org/en/Configuring_aspell_on_Windows_2003_Server
