Update .travis.yml

.travis.yml

@@ -15,14 +15,29 @@ install:
 script:
   - pytest torch_struct
 
+env:
+  global:
+    # Doctr deploy key for harvardnlp/pytorch-struct
+    - secure: "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"
+
+
 
 matrix:
   include:
     - env: LINT_CHECK
       python: "3.6"
       install: pip install flake8 pep8-naming
       script: cd torch_struct/;flake8 --ignore "N801, E203, E266, E501, W503, F812, E741, N803, N802, N806" .
+    - python: "3.6"
+      install:
+        - python setup.py install
+        - pip install doctr
+      script:
+        - pip install -r docs/requirements.txt
+        - cd docs/; make html; cd ..
+        - set -e
+        - doctr deploy --built-docs docs/build/html/ .
     - python: "3.6"
       script:
         - coverage run --source=torch_struct setup.py test
-        - coveralls
+        - coveralls