This is how to create a video embeded in this web sites articles.

Went to a web site.  Started a video.  Clicked their share button.  Picked "embed" from the choices.  Copied the code.  Opened the editor on this site.  Clicked the [Toggle Editor] option above the editing window.  This put the screen into raw html editing mode.  Pasted the code into the editor.  Clicked [Toggle Editor] again.  Clicked "Featured" to make it show up on the main page.  Saved and Closed.