docs: enable folding in navigation area

This helps to avoid being overwhelmed by the number of pages!

refs: https://github.com/rust-lang/mdBook/issues/1724

ci/generate-docs.py

@@ -137,6 +137,7 @@ TOC = [
                     Page("Key Binding", "config/keys.md"),
                     Page("Mouse Binding", "config/mouse.md"),
                     Page("Colors & Appearance", "config/appearance.md"),
+                    GenColorScheme("Color Schemes", "colorschemes"),
                 ],
             ),
             Page("Scrollback", "scrollback.md"),
@@ -152,7 +153,6 @@ TOC = [
             Page("F.A.Q.", "faq.md"),
             Page("Getting Help", "help.md"),
             Page("Contributing", "contributing.md"),
-            GenColorScheme("Color Schemes", "colorschemes"),
             Page(
                 "Lua Reference",
                 "config/lua/general.md",

docs/book.toml

@@ -13,5 +13,9 @@ default-theme = "ayu"
 preferred-dark-theme = "ayu"
 git-repository-url = "https://github.com/wez/wezterm"
 
+[output.html.fold]
+enable = true
+level = 1
+
 [output.linkcheck]
 traverse-parent-directories = false