Add gevent community tutorial (#1709)

* Add gevent community tutorial

* Update content/roadmaps/108-python/content/106-python-frameworks/101-asynchronous/100-gevent.md

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/108-python/content/106-python-frameworks/101-asynchronous/100-gevent.md

@@ -5,4 +5,4 @@ gevent is a Python library that provides a high-level interface to the event loo
 <ResourceGroupTitle>Free Content</ResourceGroupTitle>
 <BadgeLink colorScheme='blue' badgeText='Official Website' href='http://www.gevent.org/'>gevent — Official Website</BadgeLink>
 <BadgeLink colorScheme='blue' badgeText='GitHub Repository' href='https://github.com/gevent/gevent'>GitHub Repository</BadgeLink>
-
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://sdiehl.github.io/gevent-tutorial/'>gevent For the Working Python Developer</BadgeLink>