Added checkbox to certify account

Agree to cerfity button activated on checking the checkbox for user policy

app/templates/account/certify.html

@@ -94,8 +94,9 @@
           </div>
           <br>
           <div class="col-md-7 col-sm-7 my-col">
+            <br><input class="checks" id ="agree" type="checkbox" name="agree" value="agree" onchange= check() />Agree to proceed<br/>
             <button class="btn btn-danger btn-md" id="cancel" name="cancel" type="button" onClick="renderDom('Account  Certification Cancelled','{{ cancel_msg |safe }}', null)">Cancel</button> 
-            <button class="btn btn-primary btn-md"  id="submit" name="submit" type="button" value="Submit" onclick="displayloading1();certify_account()"> Certify Account</button>
+            <button class="btn btn-primary btn-md" disabled  id="submit" name="submit" type="button" value="Submit" onclick="displayloading1();certify_account()"> Certify Account</button>
           </div>
         </form>
       </div>