Add Travis CI badge to README

appveyor.yml

@@ -0,0 +1,23 @@
+environment:
+
+  matrix:
+
+    # For Python versions available on Appveyor, see
+    # http://www.appveyor.com/docs/installed-software#python
+
+    - PYTHON: "C:\\Python35"
+
+install:
+  # We need wheel installed to build wheels
+  - "%PYTHON%\\python.exe -m pip install pipenv"
+  - "pipenv install -d --system"
+
+build: off
+
+test_script:
+  # Put your test command here.
+  # Note that you must use the environment variable %PYTHON% to refer to
+  # the interpreter you're using - Appveyor does not do anything special
+  # to put the Python version you want to use on PATH.
+  - "nosetests"
+