Update README.rst

D'oh.

README.rst

@@ -280,8 +280,8 @@ As you can see boost::format is much slower than the alternative methods; this
 is confirmed by `other tests <http://accu.org/index.php/journals/1539>`_.
 Tinyformat is quite good coming close to IOStreams.  Unfortunately tinyformat
 cannot be faster than the IOStreams because it uses them internally.
-Performance of cppformat is close to that of printf. cppformat is
-[faster on integer formatting](http://zverovich.net/2013/09/07/integer-to-string-conversion-in-cplusplus.html),
+Performance of cppformat is close to that of printf. cppformat is `faster on integer
+formatting <http://zverovich.net/2013/09/07/integer-to-string-conversion-in-cplusplus.html>`_,
 but slower on floating-point formatting which dominates this benchmark.
 
 Compile time and code bloat