added minimum characters error message and changed note text

public/index.html

@@ -56,13 +56,14 @@
               id="inputTextCharacters" name="inputTextCharacters" value="">
             <div id="textCharacters-validation" class="error-message">Please enter number the of characters.</div>
           </div>
+          <div id="min-count-validation" class="error-message">Please enter minimum number the of characters.</div>
           <div class="more-information">
             <div>
               <h4> <span>&#9432;</span> Note</h4>
             </div>
             <div>
-              <div>Minimum number of characters for school level should be;
-                First Year: 100, Second Year: 100, Third Year: 400, Fourth Year: 400 </div>
+              <div>Please enter a text of more than 100 alphabetic characters for first and second year school levels,
+                and 400 alphabetic characters for third and fourth year school levels.</div>
             </div>
           </div>
         </div>