update README

Author: sreeder

README.md

@@ -64,12 +64,15 @@ Download the source code ​[here](https://code.google.com/p/pyodbc/downloads/de
 Unzip the directory where ever you want.
 Edit ​setup.py​ within the pyodbc directory.
 Look for the line that says “OS/X now ships with iODBC.” Right underneath that, remove the letter i from the statement:
+
     settings[‘libraries’].append(‘iodbc’)
 
 so that it reads:
+
     settings[‘libraries’].append(‘odbc’)
-
+
 Now that the setup.py file is configured correctly, pyodbc is ready to be installed. From your virtual environment, do a pip install of pyodbc and use the modified package.
+
     pip install -e PATH_TO_PYODBC