docs(playground): fix typo (#2)

Author: MapTo0

packages/playground/webapp/index.html

@@ -87,21 +87,21 @@ <h2 class="heading">Try out the demo apps</h2>
                         <div class="card-top">
                             <img class="framework-logo margin-bottom" src="./images/angular.svg" alt="Angular Logo">
                             <p class="framework-description margin-bottom">We have a demo in Angular</p>
-                            <h2>Comming Soon!</h2>
+                            <h2>Coming Soon!</h2>
                         </div>
                     </div>
                     <div class="card">
                         <div class="card-top">
                             <img class="framework-logo margin-bottom" src="./images/react.svg" alt="Reacy Logo">
                             <p class="framework-description margin-bottom">...but how about ReactJS...</p>
-                            <h2>Comming Soon!</h2>
+                            <h2>Coming Soon!</h2>
                         </div>
                     </div>
                     <div class="card">
                         <div class="card-top">
                             <img class="framework-logo margin-bottom" src="./images/vue.svg" alt="Vue Logo">
                             <p class="framework-description margin-bottom">...or if you fancy VueJS?</p>
-                            <h2>Comming Soon!</h2>
+                            <h2>Coming Soon!</h2>
                         </div>
                     </div>
                 </div>