Note vue extension

src/content/docs/recipes/snippets.mdx

@@ -66,4 +66,4 @@ In order for Luasnip to see the newly added snippet, it must be cataloged in `sn
 }
 ```
 
-To verify the newly added snippet works, create a new vue file and type any string represented in the snippet's prefix; in this case, `setup`. You can also use `:LuaSnipListAvailable` to see a list of all snippets available.
+To verify the newly added snippet works, create a new vue file with ".vue" extension and type any string represented in the snippet's prefix; in this case, `setup`. You can also use `:LuaSnipListAvailable` to see a list of all snippets available.