fix to run tox

Author: netmarkjp

README.md

@@ -41,6 +41,10 @@ significantly mistune, lpod, pygments, lxml and pillow) manually.
 
 Run `tox` to run the test suite.
 
+    pip install tox
+    tox -v
+
+
 ## Usage
 
 	usage: odpdown [-h] [--version] [-p PAGE] [-n] [-s HIGHLIGHT_STYLE]

tox.ini

@@ -4,7 +4,6 @@ envlist = py27,flake8
 [testenv]
 whitelist_externals = cram
 deps = -rrequirements.txt
-       lxml
        nose
 commands = nosetests
            cram cramtest
@@ -13,4 +12,4 @@ commands = nosetests
 basepython=python
 deps=flake8
 commands=
-    flake8 odpdown odpdown.py
+    flake8 odpdown odpdown.py