Ensure URLs are opened in a new tab.

layouts/_default/_markup/render-link.html

@@ -0,0 +1 @@
+<a href="{{ .Destination | safeURL }}"{{ with .Title }} title="{{ . }}"{{ end }}{{ if or (strings.HasPrefix .Destination "http") (strings.HasPrefix .Destination "https") }} target="_blank"{{ end }}>{{ .Text | safeHTML }}</a>