If you want to add text or images directly to your Moodle course page you can do so using a label or a page.
Turn editing on by either:
In the section where you’d like to add content, click “Add Activity/Resource”
From the activity chooser, scroll down to the Resources heading and choose either a label or page. Double-click your selection, or click the Add button.
Use the text-boxes to add your content. You can use the buttons on the toolbar to add headings, bold or italicize text, create lists, add hyperlinks, add images, embed UP MediaSpace videos, create a voice recording, and more.
Once you are happy with your content, click Save and display or Save and return.