Added top level readme.

README.md

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+![SDW Logo](http://skookum.com/wp-content/themes/skookum/images/sdw-logo.png)
+
+# Programming Challenges
+
+This public repository is where we host all the solutions that [Skookum](http://skookum.com) developers come up with to internal coding challenges.
+
+Check out each folder's README file for a description of the challenge and then the files in that folder for the various solutions each participant came up with.
+
+