Fix: Match single quotes (#17539)

* Fix: Match single quotes

* Fix: slash direction

* Fix: Regex expression and refined tests

Author: Vimal-Raghubir

challenges/01-responsive-web-design/applied-accessibility.json

@@ -1253,11 +1253,11 @@
       "tests": [
         {
           "text": "Your code should move the anchor <code>a</code> tags from around the words \"Click here\" to wrap around the words \"information about batteries\".",
-          "testString": "assert($('a').text().match(/information about batteries/g), 'Your code should move the anchor <code>a</code> tags from around the words \"Click here\" to wrap around the words \"information about batteries\".');"
+          "testString": "assert($('a').text().match(/^(information about batteries)$/g), 'Your code should move the anchor <code>a</code> tags from around the words \"Click here\" to wrap around the words \"information about batteries\".');"
         },
         {
           "text": "Make sure your <code>a</code> element has a closing tag.",
-          "testString": "assert(code.match(/<\\/a>/g) && code.match(/<\\/a>/g).length === code.match(/<a href=\"\">/g).length, 'Make sure your <code>a</code> element has a closing tag.');"
+          "testString": "assert(code.match(/<\\/a>/g) && code.match(/<\\/a>/g).length === code.match(/<a href=(''|\"\")>/g).length, 'Make sure your <code>a</code> element has a closing tag.');"
         }
       ],
       "solutions": [],