all: Change shortcode usage and design to prevent invalid HTML

content/en/methods/shortcode/Get.md

@@ -14,9 +14,9 @@ toc: true
 
 Specify the argument by position or by name. When calling a shortcode within Markdown, use either positional or named argument, but not both.
 
-{{% note %}}
+{{< note >}}
 Some shortcodes support positional arguments, some support named arguments, and others support both. Refer to the shortcode's documentation for usage details.
-{{% /note %}}
+{{< /note >}}
 
 ## Positional arguments
 
@@ -46,6 +46,6 @@ To retrieve arguments by name:
 {{ printf "%s %s." (.Get "greeting") (.Get "firstName") }} → Hello world.
 {{< /code >}}
 
-{{% note %}}
+{{< note >}}
 Argument names are case-sensitive.
-{{% /note %}}
+{{< /note >}}