fixed orbitron font issues

share/sass/fonts/orbitron.sass

@@ -1,15 +1,15 @@
 @font-face
   font-family: "Orbitron Medium"
-  src: ulr("#{$font-url}/orbitron/Orbitron Medium.ttf")
+  src: url('#{$font-url}/orbitron/orbitron-medium.otf')
 
 @font-face
   font-family: "Orbitron Light"
-  src: ulr("#{$font-url}/orbitron/Orbitron Light.ttf")
+  src: url('#{$font-url}/orbitron/orbitron-light.otf')
 
 @font-face
   font-family: "Orbitron Bold"
-  src: ulr("#{$font-url}/orbitron/Orbitron Bold.ttf")
+  src: url('#{$font-url}/orbitron/orbitron-bold.otf')
 
 @font-face
   font-family: "Orbitron Black"
-  src: ulr("#{$font-url}/orbitron/Orbitron Black.ttf")
+  src: url('#{$font-url}/orbitron/orbitron-black.otf')

share/sass/main.sass

@@ -13,7 +13,7 @@ $colour-bg-high: $color-primary-2
 $colour-action: $color-complement-4
 
 body
-  font-family: $font-face
+  font-family: "Orbitron Light", $font-face
   font-weight: 100
   background-color: $colour-bg
   color: $colour-fg
@@ -75,6 +75,7 @@ header a:visited
   color: $colour-fg
 
 h1, h2, h3, h4, h5
+  font-face: "Orbitron Medium"
   text-align: center
   font-weight: 300