Fix minor typo in editor-support.md (#4721)

Summary:
Fixed a small typo in editor-support.md

`imporve` -> `improve`

Pull Request resolved: #4721

Reviewed By: tyao1

Differential Revision: D58821485

Pulled By: captbaritone

fbshipit-source-id: e9aacfb469d1921dbe2c0bc668206f6873fe29ab

Author: wrryu09

website/docs/editor-support.md

@@ -15,7 +15,7 @@ import useBaseUrl from '@docusaurus/useBaseUrl';
 
 ---
 
-The Relay compiler has a rich understanding of the GraphQL embedded in your code. We want to use that understanding to imporve the developer experience of writing apps with Relay. So, starting in [v14.0.0](https://github.com/facebook/relay/releases/tag/v14.0.0), the new Rust Relay compiler can provide language features directly in your code editor. This means:
+The Relay compiler has a rich understanding of the GraphQL embedded in your code. We want to use that understanding to improve the developer experience of writing apps with Relay. So, starting in [v14.0.0](https://github.com/facebook/relay/releases/tag/v14.0.0), the new Rust Relay compiler can provide language features directly in your code editor. This means:
 
 #### Relay compiler errors surface as red squiggles directly in your editor