Go to preference
image.png
Change "editor preference" to "plain text area"
image.png
Turn on the "Edit Mode" and add an activity or resource, select page
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Then, copy and paste the following code:
<link href="https://unpkg.com/editor.md/css/editormd.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script src="https://unpkg.com/editor.md/editormd.min.js"></script>
<div id="editor">
<textarea style="display: none;"></textarea>
</div>
<script type="text/javascript">
$(function () {
var editor = editormd("editor", {
width: "100%",
height: "100%",
path: "https://unpkg.com/editor.md/lib/"
});
});
</script>
