How to embed a youtube video step by step:

First select website you will be using I chose YouTube:

The second step is to choose a video:

Thirdly you will see these options and you will select "share"

Now you will see this screen and you will select "embed"

You will now see the code to embed your video and you will want
to copy it and paste it into your code

Finally you should see this and you are all done!