Update README.md

README.md

@@ -6,12 +6,12 @@ This plugin is 99.99% based on nose's [builtin debug plugin][1].
 
 If you have any ideas about how to improve it, come and fork the code at http://github.com/flavioamieiro/nose-ipdb
 
-Install:
+Install
 --------
 
     pip install ipdbplugin
 
-Usage:
+Usage
 ------
 
 To drop into ipdb on errors:
@@ -22,12 +22,12 @@ To drop into ipdb on failures:
 
     nosetests --ipdb-failures
 
-License:
+License
 --------
 
 GNU Lesser General Public License
 
-Authors:
+Authors
 --------
 
 * Bernardo Fontes (falecomigo@bernardofontes.net)