add assignment for week 3

Author: cewing

assignments/week03/athome/assignment.txt

@@ -0,0 +1,25 @@
+Using what you've learned this week, create a more complex mashup of some data
+that interests you. Map the locations of the breweries near your house. Chart
+a multi-axial graph of the popularity of various cities across several
+categories.  Visualize the most effective legislators in Congress.  You have
+interests, the Web has tools.  Put them together to make something.
+
+Place the following in the ``assignments/week03/athome`` directory and make a
+pull request:
+
+.. class:: small
+
+A textual description of your mashup.
+  What data sources did you scan, what tools did you use, what is the
+  outcome you wanted to create?
+
+.. class:: small
+
+Your source code.
+  Give me an executable python script that I can run to get output.
+
+.. class:: small
+
+Any instructions I need.
+  If I need instructions beyond 'python myscript.py' to get the right
+  output, let me know.