Update index.html

Fixed typo.

Author: Morgul

docs/index.html

@@ -307,7 +307,7 @@ <h3 id="known-issues">Known issues</h3>
                         <div class="row code">
                             <div class="col-md-12" ng-controller="PlunkerCtrl">
                                 <div class="float-right">
-                                    <button type="button" class="btn btn-info plunk-btn" ng-click="'1.6.1', '4.1.1', '3.0.6', 'accordion')">
+                                    <button type="button" class="btn btn-info plunk-btn" ng-click="edit('1.6.1', '4.1.1', '3.0.6', 'accordion')">
                                         <i class="fa-svg-icon">
                                             <svg width="1792" height="1792" viewBox="0 0 1792 1792" xmlns="http://www.w3.org/2000/svg"><path d="M888 1184l116-116-152-152-116 116v56h96v96h56zm440-720q-16-16-33 1l-350 350q-17 17-1 33t33-1l350-350q17-17 1-33zm80 594v190q0 119-84.5 203.5t-203.5 84.5h-832q-119 0-203.5-84.5t-84.5-203.5v-832q0-119 84.5-203.5t203.5-84.5h832q63 0 117 25 15 7 18 23 3 17-9 29l-49 49q-14 14-32 8-23-6-45-6h-832q-66 0-113 47t-47 113v832q0 66 47 113t113 47h832q66 0 113-47t47-113v-126q0-13 9-22l64-64q15-15 35-7t20 29zm-96-738l288 288-672 672h-288v-288zm444 132l-92 92-288-288 92-92q28-28 68-28t68 28l152 152q28 28 28 68t-28 68z"/></svg>
                                         </i>