style: align layout and ownership documentation

source/ast/ast.hon

@@ -426,7 +426,7 @@ set_source proc(
     try arraylist.append(&builder.storage.sources,
         diagnostics.Source{
             path = path,
-            text = text
+            text = text,
         })
     builder.source = text
     builder.source_id = id
@@ -446,7 +446,7 @@ remove_source proc(builder @mut Builder) void {
     builder.source = builder.storage.sources.items[usize(builder.source_id)].text
 }
 
-#! borrows builder storage; refresh after builder mutation and never pass this view to deinit.
+#! borrows `builder` storage; refresh after builder mutation and never pass this view to deinit.
 view proc(builder @Builder, root NodeId) Tree {
     return Tree{ storage = builder.storage, root = root }
 }