Add ci workflow

Author: GiulioRomualdi

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: python Workflow
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+
+jobs:
+  check-style:
+    name: Find Trailing Whitespace
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Find Trailing Whitespace
+        run: |
+          set +e
+          lines=$(git grep --cached -In '[[:blank:]]$')
+          if [ ! -z "$lines" ]; then
+             echo -e "\n The following lines contain trailing whitespace: \n"
+             echo -e "${lines}"
+             echo -e "\nFailed.\n"
+             exit 1
+          fi
+          exit 0