diff --git a/README.md b/README.md
index eebcc8a..c023500 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,10 @@
-
 pytchat
 =======
 
 pytchat is a python library for fetching youtube live chat.
 
 ## Description
-pytchat is a python library for fetching youtube live chat.
+pytchat is a python library for fetching youtube live chat
 without using youtube api, Selenium or BeautifulSoup.
 
 Other features:
@@ -15,12 +14,13 @@ Other features:
 instead of web scraping.
 
 ## Install
-```
+```python
 pip install pytchat
 ```
 
 ## Examples
-```
+### on-demand mode
+```python
 from pytchat import LiveChat
 
 chat = LiveChat("G1w62uEMZ74")
@@ -31,12 +31,14 @@ while chat.is_alive():
         data.tick()
 ```
 
-callback mode
-```
+### callback mode
+```python
 from pytchat import LiveChat
+import time
 
 chat = LiveChat("G1w62uEMZ74", callback = func)
 while chat.is_alive():
+    #other background operation here.
     time.sleep(3)
 
 def func(chatdata):
@@ -45,8 +47,8 @@ def func(chatdata):
         chat.tick()
 ```
 
-asyncio context:
-```
+### asyncio context:
+```python
 from pytchat import LiveChatAsync
 import asyncio
 
@@ -66,8 +68,8 @@ loop.run_until_complete(main())
 ```
 
 
-yt api compatible processor:
-```
+### yt api compatible processor:
+```python
 from pytchat import LiveChat, CompatibleProcessor
 
 chat = LiveChat("G1w62uEMZ74", 
@@ -113,6 +115,11 @@ Structure of each item which got from items() function.
     <td>int</td>
     <td>unixtime milliseconds</td>
   </tr>
+  <tr>
+    <td>datetime</td>
+    <td>str</td>
+    <td></td>
+  </tr>
   <tr>
     <td>amountValue</td>
     <td>float</td>
@@ -188,10 +195,13 @@ Structure of author object.
     <td></td>
   </tr>
 </table>
+
 ## Licence
 
 [![MIT License](http://img.shields.io/badge/license-MIT-blue.svg?style=flat)](LICENSE)
 
 ## Author
 
-[taizan-hokuto](https://github.com/taizan-hokuto)
\ No newline at end of file
+[taizan-hokuto](https://github.com/taizan-hokuto)
+
+[twitter:@taizan205](https://twitter.com/taizan205)
\ No newline at end of file
diff --git a/pytchat/__init__.py b/pytchat/__init__.py
index 3fdf5fe..7f26001 100644
--- a/pytchat/__init__.py
+++ b/pytchat/__init__.py
@@ -2,7 +2,7 @@
 pytchat is a python library for fetching youtube live chat.
 """
 __copyright__    = 'Copyright (C) 2019 taizan-hokuto'
-__version__      = '0.0.1.5'
+__version__      = '0.0.1.6'
 __license__      = 'MIT'
 __author__       = 'taizan-hokuto'
 __author_email__ = '55448286+taizan-hokuto@users.noreply.github.com'