Fix a typo

Author: TomasHubelbauer

posts/2021-03-25-Rust-1.51.0.md

@@ -28,7 +28,7 @@ This release represents one of the largest additions to the Rust language and Ca
 
 
 ### Const Generics MVP
-Before this release, Rust allowed you to haves your types be parameterized over lifetimes or types. For example if we wanted to have a `struct` that is generic over the element type of an array, we'd write the following:
+Before this release, Rust allowed you to have your types be parameterized over lifetimes or types. For example if we wanted to have a `struct` that is generic over the element type of an array, we'd write the following:
 
 ```rust
 struct FixedArray<T> {