Updated README.md to match new directory structure.

README.md

@@ -6,10 +6,11 @@ OpenType Unicode fonts for Scientific, Technical, and Mathematical texts
 See http://www.stixfonts.org/ for a description of the the STIX Fonts
 project.
 
-Download the [current version](STIXv2.0.0.zip).
+Download the [current version](zipfiles/STIXv2.0.0.zip) of the OTF,
+WOFF, and WOFF2 files in a zip archive.
 
 The STIX Two fonts are a set of OpenType fonts and are meant to be
 used in that format.  For the benefit of LaTeX users who are unable to
 use XeTeX or luaTeX, we have also provided version 2.0.0 of the STIX
-fonts as a [set of TFM files and Type 1
-fonts](STIXv2.0.0/Fonts/Type1).
+fonts as a [set of TFM files and Type 1 fonts](Type1).  These are also
+available as a separate [zip file](zipfiles/STIXv2.0.0-type1.zip).