Merge pull request #12061 from hashicorp/json_template_engine_doc_fix

docs: move legacy JSON warning under title

website/content/docs/templates/legacy_json_templates/engine.mdx

@@ -6,14 +6,14 @@ description: |
 page_title: Template Engine - Templates
 ---
 
-`@include 'from-1.5/legacy-json-warning.mdx'`
-
 # Template Engine
 
 All strings within templates are processed by a common Packer templating
 engine, where variables and functions can be used to modify the value of a
 configuration parameter at runtime.
 
+`@include 'from-1.5/legacy-json-warning.mdx'`
+
 The syntax of templates uses the following conventions:
 
 - Anything template related happens within double-braces: `{{ }}`.