typo, pause

Author: tshepang

src/borrow_check/opaque-types-region-inference-restrictions.md

@@ -229,7 +229,7 @@ fn test::{closure#0}(_upvar: &'?8 str) -> Opaque<'?6, '?7> {
 // "hidden type captures lifetime that does not appear in bounds".
 ```
 
-Without this restrictions error messages are confusing and, more importantly, there is a risk that
+Without these restrictions, error messages are confusing and, more importantly, there is a risk that
 we accept code that would likely break in the future because member constraints are super broken
 in closures.