More testing whitespace.

TBR=nodir@chromium.org, tandrii@chromium.org

Bug: 790434
Change-Id: I2aa5f1aabeeaa46a64defa4947a5a814851a056c
Reviewed-on: https://chromium-review.googlesource.com/1103010Reviewed-by: Robbie Iannucci <iannucci@chromium.org>
Commit-Queue: Robbie Iannucci <iannucci@chromium.org>

README.md

@@ -2,7 +2,6 @@
 
 Tools for working with Chromium development. It requires python 2.7.
 
-
 ## Tools
 
 The most important tools are: