fix: reword 01.managing-ui-state sentence (#231)

Co-authored-by: Kent C. Dodds <[email protected]>

Author: zacjones93

exercises/01.managing-ui-state/README.mdx

@@ -10,7 +10,7 @@ how that works with React:
 
 ![render --> set up the DOM --> user interacts --> state changes --> re-render --> update the DOM --> return to user interacts](/react-app-lifecycle.png)
 
-From there's a cycle of user interaction, state changes, and re-rendering. This
+There's a cycle of user interaction, state changes, and re-rendering. This
 is the core of how React works for interactive applications.
 
 The `render` phase is what what we've done so far with creating React elements.