Update info for Pandas Sprint for Gender Minorities vol2 (#141)

* Clone form github

* Cloned from Github

* adding new event: pandas sprint for gender minorities vol 2

* adding new sponsor: durthers

* Fix event page and sponsor page

* Fix typo

* fix typo

* Adding info about tutorial for the event

* Update info about tutorial

* fix typo

Author: Cheukting

_posts/2018-08-02-pandas-doc-min.md

@@ -17,6 +17,9 @@ So, there is still some work to do.
 In this sprint, each pair of participants (or each participant if you prefer
 not to pair-program) will be assigned a pandas documentation page to work on.
 
+There will also be a tutorial section about pandas and data analysis in python
+by Marc Garcia, core developer of pandas.
+
 By the end of the sprint, you should be able to convert a page like this:
 - <http://pandas.pydata.org/pandas-docs/version/0.20/generated/pandas.Series.plot.kde.html>