Add GitHub workflows

.github/workflows/python-build.yml

@@ -0,0 +1,33 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Python Build
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.6, 3.7, 3.8]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install poetry
+        poetry install
+    - name: Run specs
+      run: |
+        make spec

pyproject.toml

@@ -5,7 +5,7 @@ description = "A light-service like project in Python"
 authors = ["Attila Domokos <adomokos@gmail.com>"]
 
 [tool.poetry.dependencies]
-python = "^3.7"
+python = "^3.6"
 
 [tool.poetry.dev-dependencies]
 mamba = "^0.11.1"