update: Fixed right arrow in webpage title
update: Fixed right arrow in webpage title

* The javascript code which generated the webpage title used an html
  entity which did not render in the browser. This commit tries to fix
  this problem.

Signed-off-by: mr.Shu <8e7be411ad89ade93d144531f3925d0bb4011004@shu.io>

OverTheWireOrg/OverTheWire-website,OverTheWireOrg/OverTheWire-website,OverTheWireOrg/OverTheWire-website,OverTheWireOrg/OverTheWire-website,OverTheWireOrg/OverTheWire-website