fixed toc

hherlyng · hherlyng · commit 50f03d3a5ba0 · 2023-04-13T13:44:13.000+02:00
diff --git a/_toc.yml b/_toc.yml
@@ -8,4 +8,4 @@ parts:
           - file: notebooks/intro-mpi/send-recv
           - file: notebooks/intro-mpi/scatter-gather
           - file: notebooks/send-vs-send
-	  - file: notebooks/dolfinx_MPI_tutorial
+          - file: notebooks/dolfinx_MPI_tutorial
