Update readme.

README.rst

@@ -9,11 +9,13 @@ in Python.
 Features
 --------
 
-* `Format string syntax`_ similar to the one used by `str.format
+* `Format string syntax <http://vitaut.github.com/format/format.html>`__
+  similar to the one used by `str.format
   <http://docs.python.org/2/library/stdtypes.html#str.format>`__ in Python.
 * Support for user-defined types.
 * High speed: performance of the current implementation is close to that of
-  ``printf`` and better than performance of IOStreams. See `Speed tests`_.
+  glibc's ``printf`` and better than performance of IOStreams. See
+  `Speed tests`_.
 * Small code size both in terms of source code (format consists of a single
   header file and a single source file) and compiled code.
   See `Compile time and code bloat`_.
@@ -23,7 +25,7 @@ Features
   reported using exceptions.
 * Ease of use: small self-contained code base, no external dependencies,
   permissive BSD `license`_.
-* `Portability`_
+* `Portability`_ and support for older compilers.
 
 Examples
 --------