docs(README): update architecture link to point to parser documentation (#15240)

The `https://oxc.rs/docs/learn/architecture` is missing, should replace
with `https://oxc.rs/docs/contribute/parser.html`.

---------

Signed-off-by: Tunglies <[email protected]>
Co-authored-by: graphite-app[bot] <96075541+graphite-app[bot]@users.noreply.github.com>

Author: Tunglies

README.md

@@ -35,7 +35,7 @@ For more information, check out our website at [oxc.rs](https://oxc.rs).
 - **Developer Experience**: Clear APIs, comprehensive documentation, and sensible configuration.
 - **Modular composability**: Use individual components independently or compose them into complete toolchains.
 
-Read more about our [architecture](https://oxc.rs/docs/learn/architecture) and [performance philosophy](https://oxc.rs/docs/learn/performance).
+Read more about our [architecture](https://oxc.rs/docs/learn/architecture/parser.html) and [performance philosophy](https://oxc.rs/docs/learn/performance).
 
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