docs: pre-release documentation fixes

- Remove non-existent 'move' strategy from CLI docs
- Update installation guide for v5 release (remove beta note, fix clone cmd)
- Add fontOrigin configuration documentation
- Document layout condition property with available presets
- Add optional title font to typography example

docs/layout.md

@@ -108,6 +108,29 @@ layout:
         right: []
 ```
 
+### Conditional Rendering
+
+Plugins can specify a `condition` in their layout block to control when they appear. This uses built-in presets:
+
+```yaml title="quartz.config.yaml"
+plugins:
+  - source: github:quartz-community/breadcrumbs
+    enabled: true
+    layout:
+      position: beforeBody
+      priority: 5
+      condition: not-index
+```
+
+Available conditions:
+
+| Condition   | Effect                                               |
+| ----------- | ---------------------------------------------------- |
+| `not-index` | Hidden on the root index page, shown everywhere else |
+| `has-tags`  | Only shown on pages that have tags in frontmatter    |
+
+See [[layout-components]] for more details on conditional rendering and display options.
+
 For advanced layout overrides using TypeScript (e.g. custom component wrappers or conditional logic), you can use the TS override in `quartz.ts`:
 
 ```ts title="quartz.ts"