Exclude moderne recipes file from spell checker

.github/actions/spelling/excludes.txt

@@ -88,6 +88,7 @@
 ^docusaurus.config.ts
 ^docs/reference/recipes-with-data-tables.md
 ^docs/reference/community-recipes.md
+^docs/reference/moderne-recipes.md
 ^robots.txt
 ^CNAME
 ^src/