Update README.md (#3)

Fix a typo

Author: knappe

README.md

@@ -1,6 +1,6 @@
 # Ten Years of Rails Upgrades
 
-This is a companion to the "Ten Years of Rails Upgrades" conference talk. You'll found various utilities that we use at Clio to help us prepare for and complete Rails upgrades.
+This is a companion to the "Ten Years of Rails Upgrades" conference talk. You'll find various utilities that we use at Clio to help us prepare for and complete Rails upgrades.
 
 These scripts are still early days and may not work in every environment or app.