docs: fix file extension

docs/04-community/01-contribution-guide.mdx

@@ -223,7 +223,7 @@ When writing JavaScript code blocks, we use the following language and extension
 
 |                                | Language | Extension |
 | ------------------------------ | -------- | --------- |
-| JavaScript files with JSX code | ```jsx   | .js       |
+| JavaScript files with JSX code | ```jsx   | .jsx      |
 | JavaScript files without JSX   | ```js    | .js       |
 | TypeScript files with JSX      | ```tsx   | .tsx      |
 | TypeScript files without JSX   | ```ts    | .ts       |