auto deployment

.travis.yml

@@ -0,0 +1,22 @@
+language: python
+
+python:
+  - 3.4
+
+install:
+  - pip install mkdocs
+  - python setup.py install
+
+script:
+  - mkdocs build
+
+after_success: |
+  if [ -n "$GITHUB_API_KEY" ]; then
+    cd "$TRAVIS_BUILD_DIR"
+    cd site
+    git init
+    git add .
+    git -c user.name='travis' -c user.email='travis' commit -m "update"
+    git push -f -q https://Meow-J:$GITHUB_API_KEY@github.com/LearnOpenGL-CN/learnopengl-cn.github.io master &2>/dev/null
+    cd "$TRAVIS_BUILD_DIR"
+  fi