docs: add example sub-pages

Assisted-by: Delta:zai-glm-5.3

site/calepin.toml

@@ -22,14 +22,23 @@ title = "Thermodynamics"
   [[sidebar.section.item]]
   target = "thermo/index.typ"
 
+  [[sidebar.section.item]]
+  target = "thermo/heat-transfer.typ"
+
 [[sidebar.section]]
 title = "Security"
 
   [[sidebar.section.item]]
   target = "security/index.typ"
 
+  [[sidebar.section.item]]
+  target = "security/ssh.typ"
+
 [[sidebar.section]]
 title = "Homelab"
 
   [[sidebar.section.item]]
   target = "homelab/index.typ"
+
+  [[sidebar.section.item]]
+  target = "homelab/self-hosting.typ"

site/homelab/self-hosting.typ

@@ -0,0 +1,6 @@
+#set document(title: [Self-hosting])
+#metadata((title: "Self-hosting", translation_key: "homelab-self-hosting")) <website-metadata>
+
+#title()
+
+Placeholder page — the real content comes later.

site/security/ssh.typ

@@ -0,0 +1,6 @@
+#set document(title: [SSH])
+#metadata((title: "SSH", translation_key: "security-ssh")) <website-metadata>
+
+#title()
+
+Placeholder page — the real content comes later.

site/thermo/heat-transfer.typ

@@ -0,0 +1,6 @@
+#set document(title: [Heat transfer])
+#metadata((title: "Heat transfer", translation_key: "thermo-heat-transfer")) <website-metadata>
+
+#title()
+
+Placeholder page — the real content comes later.