Consolidate PDE module into session 6

Author: Daniel Precioso, PhD

_quarto.yml

@@ -109,30 +109,26 @@ website:
             href: modules/networks/sir.qmd
           - text: "Assignment"
             href: modules/networks/assignment.qmd
-      - section: "Session 6: Networks (part 2)"
-        href: modules/network-dynamics/index.qmd
-        contents:
-          - text: "Assignment"
-            href: modules/network-dynamics/assignment.qmd
-      - section: "Session 7: PDEs"
-        href: modules/pde-1d/index.qmd
+      - section: "Session 6: PDEs"
+        href: modules/pde/index.qmd
         contents:
           - text: "Gierer-Meinhardt 1D"
-            href: modules/pde-1d/gierer-meinhardt.qmd
+            href: modules/pde/gierer-meinhardt-1d.qmd
           - text: "Turing Instability"
-            href: modules/pde-1d/turing-instability.qmd
-          - text: "Assignment"
-            href: modules/pde-1d/assignment.qmd
+            href: modules/pde/turing-instability.qmd
           - text: "Gierer-Meinhardt 2D"
-            href: modules/pde-2d/gierer-meinhardt.qmd
-          - text: "Turing Instability (2D)"
-            href: modules/pde-2d/turing-instability.qmd
+            href: modules/pde/gierer-meinhardt-2d.qmd
           - text: "Gray-Scott"
-            href: modules/pde-2d/gray-scott.qmd
+            href: modules/pde/gray-scott.qmd
           - text: "Gray-Scott: Interaction"
-            href: modules/pde-2d/gray-scott-art.qmd
+            href: modules/pde/gray-scott-art.qmd
           - text: "Assignment"
-            href: modules/pde-2d/assignment.qmd
+            href: modules/pde/assignment.qmd
+      - section: "Session 7: Networks (part 2)"
+        href: modules/network-dynamics/index.qmd
+        contents:
+          - text: "Assignment"
+            href: modules/network-dynamics/assignment.qmd
       - section: "Session 8: Cellular Automata"
         href: modules/cellular-automata/index.qmd
         contents: