docs: fix grammar in rspack-next-partner.mdx (#10169)

* docs: fix grammar in rspack-next-partner.mdx

* Update rspack-next-partner.mdx

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Co-authored-by: neverland <[email protected]>
Co-authored-by: neverland <[email protected]>

Author: tlund101

website/docs/en/blog/rspack-next-partner.mdx

@@ -73,7 +73,7 @@ As of now, next-rspack passes around 96% of integration tests, and progress can
 
 - Some edge cases and advanced features may still require workarounds or additional support. Let us know how it went in the [feedback discussion](https://github.com/vercel/next.js/discussions/77800), even when you don't run into problems.
 - Due to the current plugin implementation, the performance of the App Router is still suboptimal and there's still plenty of room for performance improvement.
-- Since Rspack is not 100% compatible with webpack's API, some of your webpack plugin may not work smoothly on Rspack, Let we know if you meet compatible problems.
+- Since Rspack is not 100% compatible with webpack's API, some of your webpack plugins may not work smoothly on Rspack. Let us know if you have compatibility problems.
 
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