Update description of BangPypers group to reflect its twenty-one year history

Author: ramgopalsiddh

_posts/2017-06-03-how-bangpypers-is-run.md

@@ -18,7 +18,7 @@ hidden: false
 
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-[BangPypers](https://www.quora.com/Who-decided-the-name-BangPypers-for-the-Bangalore-Python-User-Group) is a [twelve year](https://www.swaroopch.com/2005/01/22/first-bangalore-python-meetup/) old group started by Anand B Pillai. For Half a decade [meetup group](https://www.meetup.com/BangPypers/) is the anchor for organizing Python meetups in Bangalore. During the period, co-organizer has devised working for the team.
+[BangPypers](https://www.quora.com/Who-decided-the-name-BangPypers-for-the-Bangalore-Python-User-Group) is a [twenty one year](https://www.swaroopch.com/2005/01/22/first-bangalore-python-meetup/) old group started by Anand B Pillai. For Half a decade [meetup group](https://www.meetup.com/BangPypers/) is the anchor for organizing Python meetups in Bangalore. During the period, co-organizer has devised working for the team.
 
 ### Event Types?