Added Github Workflow

.github/workflows/python-build.yaml

@@ -0,0 +1,45 @@
+name: Python Build Pipeline
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        python-version: ['3.8', '3.9', '3.10']
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          pip install -U "flake8==5.0.4" "mypy==0.982" "numpy>=1.21.1" "scipy>=1.7.3" "mpmath==1.3.0" "pytest==7.2.0" "pytest-cov==4.0.0" "attrs==22.1.0" "hypothesis==6.58.0" "coveralls==3.3.1" "sphinx_rtd_theme==1.2.2" "sphinx<7.0.0"
+          pip install .
+
+      - name: Lint with flake8
+        run: flake8 petbox/dca
+
+      - name: Type-check with mypy
+        run: mypy petbox/dca
+
+      - name: Run tests with pytest
+        run: pytest --cov=petbox
+
+      - name: Build documentation with Sphinx
+        run: sphinx-build -W -b html docs docs/_build/html
+
+      - name: Upload coverage to Coveralls
+        if: success()
+        run: coveralls