Update navbar in prep for new website

Author: WardBrian

src/_quarto.yml

@@ -41,9 +41,10 @@ website:
   navbar:
     logo: "img/logo_tm.png"
     logo-alt: "Stan logo"
+    logo-href: https://mc-stan.org/
     title: false
     left:
-      - text: "Overview"
+      - text: "Documentation"
         href: index.qmd
       - text: "Stan Users Guide"
         href: stan-users-guide/index.qmd