fix(curriculum): check for correct method in test (#42214)

I don't know how the code runs from here, but I'm assuming it should be the correct method now

curriculum/challenges/english/06-quality-assurance/quality-assurance-and-testing-with-chai/run-functional-tests-using-a-headless-browser-ii.md

@@ -94,7 +94,7 @@ You should assert that the element 'span#dates' exist and its count is 1.
 (getUserInput) =>
   $.get(getUserInput('url') + '/_api/get-tests?type=functional&n=5').then(
     (data) => {
-      assert.equal(data.assertions[3].method, 'browser.element');
+      assert.equal(data.assertions[3].method, 'browser.elements');
       assert.match(data.assertions[3].args[0], /('|")span#dates\1/);
       assert.equal(data.assertions[3].args[1], 1);
     },