Fixed link to custom object formatter tutorial

src/core/requireInterface.js

@@ -351,7 +351,7 @@ getJasmineRequireObj().interface = function(jasmine, env) {
    * @since 3.6.0
    * @function
    * @param {Function} formatter - A function which takes a value to format and returns a string if it knows how to format it, and `undefined` otherwise.
-   * @see custom_object_formatter
+   * @see custom_object_formatters
    */
   jasmine.addCustomObjectFormatter = function(formatter) {
     return env.addCustomObjectFormatter(formatter);