docs(Guides): Grammar correction (#6372)

Author: 4127157

src/content/guides/ecma-script-modules.mdx

@@ -11,7 +11,7 @@ related:
 ECMAScript Modules (ESM) is a [specification](https://tc39.github.io/ecma262/#sec-modules) for using Modules in the Web.
 It's supported by all modern browsers and the recommended way of writing modular code for the Web.
 
-Webpack supported processing ECMAScript Modules to optimize them.
+Webpack supports processing ECMAScript Modules to optimize them.
 
 ## Exporting