Added deploy.

.travis.yml

@@ -9,3 +9,10 @@ install:
   - pip install .
 script:
   - make test
+deploy:
+  _ git checkout --orphan gh-pages
+  _ rm $(git ls-files)
+  _ git rm --cached $(git ls-files)
+  _ git add .
+  _ git commit
+  _ git push origin gh-pages