Add hugo.Store, site.Store and Shortcode.Store

content/en/methods/shortcode/Store.md

@@ -0,0 +1,29 @@
+---
+title: Store
+description: Returns a "Store pad" scoped to the shortcode to store and manipulate data. 
+categories: []
+keywords: []
+action:
+  related:
+    - functions/collections/NewScratch
+    - methods/page/Store
+    - methods/site/Store
+    - functions/hugo/Store
+  returnType: maps.Store
+  signatures: [SHORTCODE.Store]
+---
+
+{{< new-in 0.139.0 >}}
+
+The `Store` method within a shortcode creates a [scratch pad] 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 `Store` method within a shortcode is mostly obsolete.
+
+[assign values to template variables]: https://go.dev/doc/go1.11#text/template
+[`newScratch`]: /functions/collections/newScratch/
+{{% /note %}}
+
+[Store pad]: /getting-started/glossary/#scratch-pad
+
+{{% include "methods/page/_common/scratch-methods.md" %}}