The Module Overview tab provides a space for the Module Descriptor to be visible for users of the module. You can enter a full description of your module here it is not constrained to the same level as the unit web search so you may enter more information here if required.
The content for this tab is dictated by the text of the module descriptor. This tab will only allow text to be added, therefore it can't contain any images or other media.
Below you can find an example of what this tab looks like to update, and an example of what it could like when it has been completed.
Editing this tab will look like this:
On the module page the tab will look similar to the example below: