update coverage to pettingzoo folder

update the clone branch in colab

Author: maryamhonari

.github/workflows/pytest.yml

@@ -62,7 +62,7 @@ jobs:
         pip freeze > pip_versions-${{ matrix.python-version }}.txt
         cat pip_versions-${{ matrix.python-version }}.txt
     - name: Run pytest
-      run: pytest --cov=ml-agents ml-agents --cov=ml-agents-envs ml-agents-envs --cov=gym-unity gym-unity --cov-report=html --junitxml=junit/test-results-${{ matrix.python-version }}.xml -p no:warnings -v
+      run: pytest --cov=ml-agents ml-agents --cov=ml-agents-envs ml-agents-envs --cov=gym-unity gym-unity --cov=pettingzoo-unity --cov-report=html --junitxml=junit/test-results-${{ matrix.python-version }}.xml -p no:warnings -v
     - name: Upload pytest test results
       uses: actions/upload-artifact@v2
       with:

pettingzoo-unity/Colab_PettingZoo.ipynb

@@ -112,7 +112,7 @@
     "  import mlagents\n",
     "  print(\"ml-agents already installed\")\n",
     "except ImportError:\n",
-    "  !git clone -b exp-petting-registry --single-branch https://github.com/Unity-Technologies/ml-agents.git\n",
+    "  !git clone -b develop-petting-api --single-branch https://github.com/Unity-Technologies/ml-agents.git\n",
     "  !python -m pip install -q ./ml-agents/ml-agents-envs\n",
     "  !python -m pip install -q ./ml-agents/ml-agents\n",
     "  !python -m pip install -q ./ml-agents/pettingzoo-unity\n",
@@ -312,15 +312,6 @@
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
    "version": "3.7.8"
-  },
-  "pycharm": {
-   "stem_cell": {
-    "cell_type": "raw",
-    "metadata": {
-     "collapsed": false
-    },
-    "source": []
-   }
   }
  },
  "nbformat": 4,