fix: events.md

docs/community-ecosystem/events.md

@@ -1,9 +1,9 @@
 # Events
 
-Since June 2017, the Nebulas meetups and hackathon have been hold in 17 cities, 8 countries around the world. We have visited University of California, Berkeley, New York University, Columbia University, Harvard University, Singapore University of Social Sciences, Tsinghua University, Tongji University and many other universities.
+Since June 2017, the Nebulas meetups and hackathons have been held in 17 cities, 8 countries around the world. We have visited the University of California, Berkeley, the New York University, Columbia University, Harvard University, the Singapore University of Social Sciences, Tsinghua University, Tongji University, and many others.
 
 [Events History >](https://medium.com/nebulasio/nebulas-events-7a8674690d77)
 
-Welcome to organize local meetups and write the history of Nebulas!
+You are welcome to organize local meetups and participate in the history of Nebulas!
 
-![Nebulas Community](https://nebulas.io/assets/images/community/events.jpg)
+![Nebulas Community](https://nebulas.io/assets/images/community/events.jpg)