Fix issue with vim::PushOperator documentation (#24825)

Closes: #24718

Release Notes:

- N/A

docs/src/vim.md

@@ -397,7 +397,7 @@ Vim mode comes with shortcuts to surround the selection in normal mode (`ys`), b
 {
   "context": "vim_mode == visual",
   "bindings": {
-    "shift-s": ["vim::PushAddSurrounds", {}]
+    "shift-s": ["vim::PushOperator", { "AddSurrounds": {} }]
   }
 }
 ```