workflow syntax fix

.github/workflows/build-wheels.yaml

@@ -5,14 +5,14 @@ on:
     branches:
       - master
       - extended
-      
+
 jobs:
-  my_first_job:
+  many_linux_wheels:
     name: manylinux-wheels
     runs-on: ubuntu-latest
     container: quay.io/pypa/manylinux2014_x86_64
     steps:
-      - uses: actions/checkout@v2
+    - uses: actions/checkout@v2
 
     - name: Print System Information
       run: |