Update README.md

Author: jackparmer

README.md

@@ -1,8 +1,8 @@
 # plotly.py
 
 > 📢 Announcement!
-> Seats are still available for a 2 day, Dash master class in NYC, November 18-19. 
-> [Registration here](https://plotcon.plot.ly/workshops) 🎚 📈 🗽
+> Registration is open for a 2 day, Dash master class in Montreal, February 17-18. 
+> [Registration here](https://plotcon.plot.ly/workshops) 🎚 📈 🇨🇦
 
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