Here is how to create reusable content in gitbook
- First choose a doc site card you want to use
- Then click on the "Start editing content" button in the main content area
- Click on the "Edit" button in the top toolbar
- Select the "Reusable content" tab in the content navigation bar
- Click on the "Create reusable content" button in the content area
- Click on the text field to name your reusable content
- Finally click the "Create" button to finalize your reusable content
