typo

    - name: Install DeepChem

      id: install

      shell: bash -l {0}

      run: pip install -e '.[torch]'

      run: pip install -e .

    - name: Yapf (version 0.22.0)

      id: yapf

      # on Windows, yapf raise the strange error..., so ignore

        python-version: [3.7]

        include:

          - os: ubuntu-latest

            python-version: 3.6

            python-version: 3.8

    env:

      OS: ${{ matrix.os }}

      PYTHON_VERSION: ${{ matrix.python-version }}