chore(ci): add CI action and fixed pylint error (#10)

* add pylintrc
* Create ci.yml
* fix typo in shufflenet
* add CI badge

Author: FateScript

.github/workflows/ci.yml

@@ -0,0 +1,50 @@
+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the action will run. Triggers the workflow on push or pull request
+# events but only for the master branch
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.5, 3.6, 3.7, 3.8]
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+    - uses: actions/checkout@v2
+    
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+        pip install megengine -f https://megengine.org.cn/whl/mge.html
+
+    # Runs a set of commands using the runners shell
+    - name: Pylint check
+      run: |
+        export PYTHONPATH=$PWD:$PYTHONPATH
+        pip install pylint
+        pylint official/vision --rcfile=.pylintrc || pylint_ret=$?
+        echo test, and deploy your project.
+        if [ "$pylint_ret" ]; then
+          exit $pylint_ret
+        fi
+        echo "All lint steps passed!"
+