chore(showcase): add ellingtonhammond.com (#25301)

Co-authored-by: gatsbybot <mathews.kyle+gatsbybot@gmail.com>

Author: PHironaka

docs/sites.yml

@@ -11234,6 +11234,16 @@
   built_by: Shion Honda
   built_by_url: https://twitter.com/shion_honda
   featured: false
+- title: Ellington Hammond
+  main_url: https://ellingtonhammond.com
+  url: https://ellingtonhammond.com
+  description: >
+    Ellington Hammond is a photographer and film director based in the United States.
+  categories:
+    - Portfolio
+    - E-commerce
+  built_by: Peter Hironaka
+  built_by_url: https://peterhironaka.com
 - title: Laputan ERP
   main_url: https://erp.laputan.com.au
   url: https://erp.laputan.com.au