added 2 react confernces (#2249)

* Update conferences.md

* Update conferences.md


Co-authored-by: Alexey Pyltsyn <lex61rus@gmail.com>

content/community/conferences.md

@@ -82,6 +82,17 @@ May 4-6, 2020. Atlanta, GA, USA.
 
 [Website](https://renderatl.com)
 
+### React Next 2020 {#react-next-2020}
+June 15, 2020. Tel Aviv, Israel.
+
+[Website](https://react-next.com/) - [Twitter](https://twitter.com/reactnext) - [Facebook](https://www.facebook.com/ReactNext2016/) 
+
+
+### React Week NY 2020 {#react-week-NY-2020}
+July 17, 2020. New York City, USA.
+
+[Website](https://reactweek.nyc/) - [Twitter](https://twitter.com/reactweek) - [Facebook](https://www.facebook.com/reactweek) 
+
 ## Past Conferences {#past-conferences}
 
 ### React.js Conf 2015 {#reactjs-conf-2015}