Replace links to glossary terms with custom render hook syntax

For example: [scalar](/getting-started/glossary/#scalar) => [scalar](g)

content/en/methods/shortcode/Scratch.md

@@ -21,7 +21,7 @@ Beginning with v0.139.0 the `SHORTCODE.Scratch` method is aliased to `SHORTCODE.
 [`SHORTCODE.Store`]: /methods/shortcode/store/
 {{% /deprecated-in %}}
 
-The `Scratch` method within a shortcode creates a [scratch pad] to store and manipulate data. The scratch pad is scoped to the shortcode.
+The `Scratch` method within a shortcode creates a [scratch pad](g) to store and manipulate data. The scratch pad is scoped to the shortcode.
 
 {{% note %}}
 With the introduction of the [`newScratch`] function, and the ability to [assign values to template variables] after initialization, the `Scratch` method within a shortcode is obsolete.
@@ -30,6 +30,4 @@ With the introduction of the [`newScratch`] function, and the ability to [assign
 [`newScratch`]: /functions/collections/newscratch/
 {{% /note %}}
 
-[scratch pad]: /getting-started/glossary/#scratch-pad
-
 {{% include "methods/page/_common/scratch-methods.md" %}}