Merge pull request #293 from EhtashamHaider/master

update html5.html

frontend/html5.html

@@ -50,6 +50,7 @@
 <sup></sup>                                       <!-- Defines superscripted text -->
 <kbd></kbd>                                       <!-- Specifies text as keyboard input -->
 <small></small>                                   <!-- Specifies small text -->  
+<ins></ins>                                       <!-- Defines a text that has been inserted into the document -->
 
 
 <!-- Links Formatting -->