So to get started login to your Umbraco 8 back office and then follow these Steps
Step 1. Create a new Doc Type with no template containing the property fields of the content you would like you nested content items to show
Step 2. Now go to the permissions of your new Doc Type and make sure you click ( Is an Element Type ). save and publish.
Step 3. Navigate to the Doc Type of the page you want to show your nested content on and add a new property using the Nested Content Editor and when configuring your Property editor Choose your newly created doc type and your element and make sure group is set to the correct group for your content. save and publish everything.
Step 4. Now click on the content section of your Umbraco 8 Back Office and populate your new Nested Content Properties with the content you would like to show( you can have as many nested content items as you like just be sure when you configured your nested content editor you said the min and max number of items to display)
Step 5. Now your field are populated with content your going to want to render it onto your actual web page to do this go the the page template you are going to be adding your nested content to and type the neccisary code. Here is a sample of how i rendered my code.
if(Model.Nest != null && Model.Nest.Count() > 0)
foreach(var contentItem in Model.Nest)
Step 6. Once you have entered your code in the way you want you nested content implementing save everything and reload your website. You will now see your Nested content items Displayed on your page where you placed them in the page template.