nest typst logo options; minor copy edit

Author: gordonwoodhull

docs/authoring/brand.qmd

@@ -259,7 +259,7 @@ The **brand.yml** specification allows you to specify a `light` and `dark` versi
 
 #### Document logo customization
 
-You can further customize the logo at the document-level with the `logo` option.
+You can further customize the logo at the document level with the `logo` option.
 
 For example, you can specify a particular brand logo resource:
 ```{.yaml filename="document.qmd"}
@@ -290,12 +290,14 @@ The Typst implementation allows customization of the logo position at the docume
 
 ```{.yaml filename="document.qmd"}
 ---
-logo:
-  width: 1in
-  location: right-top
-  padding-right: 0.5in
-  padding-top: 0.25in
-  alt: Alternate alternate text
+format:
+  typst:
+    logo:
+      width: 1in
+      location: right-top
+      padding-right: 0.5in
+      padding-top: 0.25in
+      alt: Alternate alternate text
 ---
 ```