Fixed the spelling of "Dhaka" in the timezone_menu() function of the Date helper.
Added a missing quote in an example on the index page
diff --git a/user_guide/helpers/date_helper.html b/user_guide/helpers/date_helper.html
index 41d6579..7a7b4d7 100644
--- a/user_guide/helpers/date_helper.html
+++ b/user_guide/helpers/date_helper.html
@@ -291,7 +291,7 @@
<option value='UP35'>(UTC + 4:30) Kabul</option>
<option value='UP5'>(UTC + 5:00) Islamabad, Karachi, Tashkent</option>
<option value='UP45'>(UTC + 5:30) Bombay, Calcutta, Madras, New Delhi</option>
-<option value='UP6'>(UTC + 6:00) Almaty, Colomba, Dhakra</option>
+<option value='UP6'>(UTC + 6:00) Almaty, Colomba, Dhaka</option>
<option value='UP7'>(UTC + 7:00) Bangkok, Hanoi, Jakarta</option>
<option value='UP8'>(UTC + 8:00) Beijing, Hong Kong, Perth, Singapore, Taipei</option>
<option value='UP9'>(UTC + 9:00) Osaka, Sapporo, Seoul, Tokyo, Yakutsk</option>
@@ -370,7 +370,7 @@
</tr><tr>
<td class="td">UP45</td><td class="td">(UTC + 5:30) Bombay, Calcutta, Madras, New Delhi</td>
</tr><tr>
-<td class="td">UP6</td><td class="td">(UTC + 6:00) Almaty, Colomba, Dhakra</td>
+<td class="td">UP6</td><td class="td">(UTC + 6:00) Almaty, Colomba, Dhaka</td>
</tr><tr>
<td class="td">UP7</td><td class="td">(UTC + 7:00) Bangkok, Hanoi, Jakarta</td>
</tr><tr>