Update course to match new outlinne

Author: Gordon Shotwell

_quarto.yml

@@ -11,15 +11,13 @@ website:
         - exercises/1-hello-world.qmd
         - exercises/2-basic-ui.qmd
         - exercises/3-reactivity.qmd
-        - exercises/4-dynamic-ui.qmd
         - exercises/5-reactive-effect.qmd
+        - exercises/4-dynamic-ui.qmd
 
   navbar:
     tools: 
       - icon: github
-        href: https://github.com/posit-dev/shiny-python-workshop-2023
-      - icon: fa-dicord
-        href: https://discord.gg/AQVJzG2bnN
+        href: https://github.com/talkpython/reactive-web-dashboards-with-shiny-course
     left:
       - href: index.qmd
         text: Home