Dead Youtube link in XSS explanation

[mayank-ramnani]

SecureCodingDojo/trainingportal/static/codeBlocks/neutralizeOutput.html

Lines 2 to 4 in 080b0d6

	<p>First if you want to get an idea of the challenges associated with fixing XSS, watch the following public video:
	<a target="_blank" rel="noopener noreferrer" href="https://youtu.be/FGr6gGqM4f0">How Fixing Cross-Site Scripting is Like Playing Whack-A-Mole</a> </p>

Can remove these lines.