reduce text width a bit

content/common/kwant.css

@@ -2,7 +2,7 @@
 
 body {
     min-width: 20em;
-    max-width: 60em;
+    max-width: 55em;
     margin: 0 auto;
     font-family: "Bitstream Vera Serif",  Georgia, serif;
 

content/harvard-only_trial/index.txt

@@ -31,8 +31,8 @@ and follow the `installation instructions </docs/install.html>`_.
 * tinyarray (needed by kwant): `tar-gz-archive <tinyarray-0.0.tar.gz>`__, `zip-archive <tinyarray-0.0.zip>`__
 
 
-Binary installation instructions for Windows (win32)
-----------------------------------------------------
+Binary installation instructions for Windows
+--------------------------------------------
 
 **Warning:** These packages are highly experimental and likely not to work
 fully.  In a test with Windows XP, most tutorial examples ran.  In another test
@@ -40,9 +40,9 @@ with Windows 7, most did not.  We would appreciate the help of people
 experienced with the Windows platform.
 
 **Important note**: The provided binary packages are compiled for 32-bit
-Microsoft Windows.  They can be installed on a 64-bit Windows as well, but for
-them to work all the other required packages (like Python itself) have to be
-present in their win32 versions.
+Microsoft Windows (win32).  They can be installed on a 64-bit Windows as well,
+but for them to work all the other required packages (like Python itself) have
+to be present in their win32 versions.
 
 1. Install the official Python 2.7 distribution from the official `Python
    download page <http://python.org/download/>`_. Bear in mind the note above: