Add React India 2020 to Upcoming Conferences (reactjs#2659)

* add reactIndia 2020

* update correct hashtag

Author: apherio

content/community/conferences.md

@@ -87,6 +87,10 @@ September 1, 2020 in Melbourne, Australia
 
 [Website](https://www.componentsconf.com.au/) - [Twitter](https://twitter.com/ComponentsConf) - [Facebook](https://www.facebook.com/ComponentsConf/) - [LinkedIn](https://www.linkedin.com/company/componentsconf/) - [YouTube](https://www.youtube.com/ComponentsConf)
 
+### React India 2020 {#react-india-2020}
+November 6, 2020 in Mumbai, India
+
+[Website](https://www.reactindia.io) - [Twitter](https://twitter.com/react_india) - [Facebook](https://www.facebook.com/ReactJSIndia/) - [LinkedIn](https://www.linkedin.com/showcase/14545585) - [YouTube](https://www.youtube.com/channel/UCaFbHCBkPvVv1bWs_jwYt3w/videos)
 
 ## Past Conferences {#past-conferences}