add test string

Author: jojozhuang

src/app/compare-editor/compare-editor.component.html

@@ -75,6 +75,7 @@ <h1>Text Compare</h1>
       </button>
     </div>
   </div>
+  <h2>Input Texts 1</h2>
   <div class="row">
     <div class="col-md-6 editor-size">
       <div class="input-title">