404 links in Normalizer docs

[dkarlovi]

https://symfony.com/doc/current/serializer/normalizers.html

Normalizers turn objects into arrays and vice versa. They implement NormalizerInterface for normalizing (object to array) and DenormalizerInterface for denormalizing (array to object).

Both interface links are currently broken, resulting in 404 errors.

[tony-tran]

Same for me, can you please provide a fix ? Or if you want I can create the fix

[dkarlovi]

Please do if you have the time, I'm not really up to speed with the docs repo. Thanks.