minor improvement to github actions

.github/workflows/github-actions.yml

@@ -57,7 +57,8 @@ jobs:
       uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
-    - run: |
+    - name: install mongo and ci dependencies
+      run: |
         bash .github/workflows/install_mongo.sh ${{ matrix.MONGODB }}
         bash .github/workflows/install_ci_python_dep.sh
         bash .github/workflows/start_mongo.sh ${{ matrix.MONGODB }}
@@ -75,10 +76,12 @@ jobs:
       uses: actions/setup-python@v2
       with:
         python-version: 3.7
-    - run: |
+    - name: install python dep
+      run: |
         pip install -e .
         pip install -r docs/requirements.txt
-    - run: |
+    - name: build doc
+      run: |
         cd docs
         make html-readthedocs