docs: Document usage of deno fmt (#17918)

iugo and Peter Tripp created

Clarify in the settings description that the default formatter leverages `deno fmt`. This makes it clearer for users what to expect and how formatting is handled out of the box.

Co-authored-by: Peter Tripp <peter@zed.dev>

Change summary

docs/src/languages/deno.md | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

Detailed changes

docs/src/languages/deno.md 🔗

@@ -26,7 +26,8 @@ To use the Deno Language Server with TypeScript and TSX files, you will likely w
         "!typescript-language-server",
         "!vtsls",
         "!eslint"
-      ]
+      ],
+      "formatter": "language_server"
     },
     "TSX": {
       "language_servers": [
@@ -34,7 +35,8 @@ To use the Deno Language Server with TypeScript and TSX files, you will likely w
         "!typescript-language-server",
         "!vtsls",
         "!eslint"
-      ]
+      ],
+      "formatter": "language_server"
     }
   }
 }