IODA link update

Author: nipunsadvilkar

_includes/history.html

@@ -79,7 +79,7 @@ <h2 class="story-heading">Hardware Designer</h2>
                 <h3 class="story-heading"><a
                         href="http://knowledge.indiaopendata.com/index.php/India_Open_Environment_Data_Project"
                         target="_blank">OpenEnvironment Team</a></h3>
-                <h3 class="story-heading"><a href="http://indiaopendata.com" target="_blank">India Open Data Association
+                <h3 class="story-heading"><a href="https://medium.com/@indiaopendata" target="_blank">India Open Data Association
                         (IODA)</a></h3>
                 <p>IODA's journey started in Kumbhathon 5 with an idea to produce cost-effective & scalable devices
                     which could assess the air quality during Kumbh Mela & make this environmental data open for public