Calendar.md

@@ -7,8 +7,8 @@ Here is a tentative calendar for the lectures at ULiège:
 | *21/02*   | ⛱️ *NO CLASS ("MARDI GRAS")*                                   |
 | 28/02     | 🏫 DG method - scalar advection (J.-F. Remacle)                |
 | **01/03** | 📓 **Progress report #1 -  Interpolation errors with Gmsh SDK** |
-| 07/03     | 🏫 DG method - internal penalty method (K. Hillewaert)         |
-| 14/03     | 💻 group work with instructors                                 |
+| 07/03     | 💻 group work with instructors                                 |
+| 14/03     | 🏫 DG method - internal penalty method (K. Hillewaert)         |
 | 21/03     | 💻 group work with instructors                                 |
 | 28/03     | 💻 group work with instructors                                 |
 | **29/03** | 📓 **Progress report #2 - Scalar DG solvers**                  |