Github : Apply test on Ubuntu & Windows for python 37,38,39

.github/workflows/python-app.yml

@@ -7,19 +7,27 @@ on: [push, pull_request]
 
 jobs:
   build:
-
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        # os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, windows-latest]
+        python_version: [3.7, 3.8, 3.9]
+    name: Run py eddy tracker build tests
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        shell: bash -l {0}
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.7
+    - name: Set up Python ${{ matrix.python_version }}
       uses: actions/setup-python@v2
       with:
-        python-version: 3.7
+        python-version: ${{ matrix.python_version }}
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8 pytest
+        pip install flake8 pytest pytest-cov
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Install package
       run: |
@@ -32,4 +40,4 @@ jobs:
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
     - name: Test with pytest
       run: |
-        pytest
+        pytest --cov src/py_eddy_tracker

README.md

@@ -10,6 +10,8 @@
 
 Method was described in :
 
+[Pegliasco, C., Delepoulle, A., Morrow, R., Faugère, Y., and Dibarboure, G.: META3.1exp : A new Global Mesoscale Eddy Trajectories Atlas derived from altimetry, Earth Syst. Sci. Data Discuss.](https://doi.org/10.5194/essd-2021-300)
+
 [Mason, E., A. Pascual, and J. C. McWilliams, 2014: A new sea surface height–based code for oceanic mesoscale eddy tracking.](https://doi.org/10.1175/JTECH-D-14-00019.1)
 
 ### Use case ###