Merge pull request #22 from waldyrious/patch-1

50-why.md: the first link doesn't support https

Author: Carreau

_sections/50-why.md

@@ -11,7 +11,7 @@ style: center
 Here are some resources on why Python 3 was created, and how and why to update
 code to use Python 3:
 
-- [Why Python 3 exists](https://www.snarky.ca/why-python-3-exists) (Brett Cannon)
+- [Why Python 3 exists](http://www.snarky.ca/why-python-3-exists) (Brett Cannon)
 - [How to add Python 3 support to your code](https://docs.python.org/3/howto/pyporting.html)
 - [Stop supporting Python 2.6 for free](http://www.curiousefficiency.org/posts/2015/04/stop-supporting-python26.html) (Nick Coghlan)
 - [Why Python 4.0 won't be like Python 3.0](http://www.curiousefficiency.org/posts/2014/08/python-4000.html) (Nick Coghlan)