Merge pull request #9 from ehmatthes/pygal_update

Clearer link to updates.

README.md

@@ -28,7 +28,7 @@ Here you can find instructions for:
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 The simplest way to get the online resources for the book is to click on the [*Download ZIP*](https://github.com/ehmatthes/pcc/archive/master.zip) button on the upper right side of [this page](https://github.com/ehmatthes/pcc), which will download the source code files (and other resources) for the entire book.
 
-Updates
+[Updates](UPDATES.md)
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 Some of the libraries featured in the book have been updated recently, which is a good thing - it means you're learning to use Python packages that are steadily being improved.