Buttons on homepage should be links

[5t0n3]

osusec.github.io/layouts/index.html

Lines 7 to 8 in 3e505c8

	<button class="btn hero-buttons sli-button mx-3" onclick="window.open({{ .Site.Params.sliLink }}, '_blank').focus();">Sign Up on SLI</button>
	<button class="btn hero-buttons discord-button mx-3" onclick="window.open({{ .Site.Params.discordLink}}, '_blank').focus();">Join our Discord</button>