fix comment in docs

Author: gurgunday

docs/rules/always-return.md

@@ -101,7 +101,7 @@ chain does not warn if it does an assignment to a global variable. Default is
 `["window"]`.
 
 ```js
-/* eslint promise/always-return: ["error", { ignoreAssignmentVariable: ["globalThis", "globalThis.modules"] }] */
+/* eslint promise/always-return: ["error", { ignoreAssignmentVariable: ["window", "globalThis", "globalThis.modules"] }] */
 
 // OK
 promise.then((x) => {