The Custom liquid section can be used to add any code snippet to a template. This is a great way to add app install scripts if an app requires manual installation. This is a great approach to take - your theme code remains un-edited and you still have access to easily update the theme.
Add Custom liquid section
If you want to install a code snippet across your entire site then you can move your section to the Footer group.
Add your code
<script> or a style tag.
{% endstep %}{% step %}
Click Save {% endstep %} {% endstepper %}
{% content-ref url="popular-custom-liquid/README.md" %} popular-custom-liquid {% endcontent-ref %}
Start by connecting your source repository and choosing the pages you want to publish.
You can then browse your documentation and ask questions about the content your team has shared.