Fix vim auto-linting

Author: AndiH

.github/workflows/ci.yml

@@ -18,5 +18,5 @@ jobs:
         working-directory: 03-H_Multi_GPU_Parallelization/solutions
         env:
           MPI_HOME: /usr/lib/x86_64-linux-gnu/openmpi
-	run: |
+        run: |
           make jacobi