chore(showcase): add visitrestore.com (gatsbyjs#18814)

* chore(showcase): add visitrestore.com

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## Description

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## Related Issues

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* chore: format

docs/sites.yml

@@ -8022,3 +8022,13 @@
     - Blog
     - Education
   featured: false
+- title: re:store
+  url: https://www.visitrestore.com
+  main_url: https://www.visitrestore.com
+  description: >
+    This is your chance to discover, connect, and shop beyond your feed and get to know the who, how, and why behind your favorite products.
+  categories:
+    - Marketing
+  built_by: The Couch
+  built_by_url: https://thecouch.nyc
+  featured: false