Update URLs in README

README.md

@@ -40,10 +40,10 @@ import "gsc-material/ProximaNovaFontFace.css";
 or, in plain HTML:
 
 ```html
-<link rel="stylesheet" type="text/css" href="https://git.gsc.org.uk/utils/gsc-material/raw/master/ProximaNovaFontFace.css">
+<link rel="stylesheet" type="text/css" href="ProximaNovaFontFace.css">
 ```
 
-Note that the font files themselves are not distributed with the package - they are designed to be used directly from the Git repository, which again for this purpose must therefore be public.
+Note that the font files themselves are not supposed to be distributed with the package - they are designed to be used directly from the Git repository, which again for this purpose must therefore be public.
 
 ## Images