[minor] Fix typo in JSDoc comment (#1565)

Author: rishabhkohli

lib/websocket-server.js

@@ -25,7 +25,7 @@ class WebSocketServer extends EventEmitter {
    *     connections
    * @param {Boolean} options.clientTracking Specifies whether or not to track
    *     clients
-   * @param {Function} options.handleProtocols An hook to handle protocols
+   * @param {Function} options.handleProtocols A hook to handle protocols
    * @param {String} options.host The hostname where to bind the server
    * @param {Number} options.maxPayload The maximum allowed message size
    * @param {Boolean} options.noServer Enable no server mode
@@ -34,7 +34,7 @@ class WebSocketServer extends EventEmitter {
    *     permessage-deflate
    * @param {Number} options.port The port where to bind the server
    * @param {http.Server} options.server A pre-created HTTP/S server to use
-   * @param {Function} options.verifyClient An hook to reject connections
+   * @param {Function} options.verifyClient A hook to reject connections
    * @param {Function} callback A listener for the `listening` event
    */
   constructor(options, callback) {