Grammar typo

content/blog/2017-11-28-react-v16.2.0-fragment-support.md

@@ -133,7 +133,7 @@ Fragment syntax in JSX was inspired by prior art such as the `XMLList() <></>` c
 
 Note that the `<></>` syntax does not accept attributes, including keys.
 
-If you need a keyed fragment, you can use `<Fragment />` directly. An use case for this is mapping a collection to an array of fragments -- for example, to create a description list:
+If you need a keyed fragment, you can use `<Fragment />` directly. A use case for this is mapping a collection to an array of fragments -- for example, to create a description list:
 
 ```jsx
 function Glossary(props) {