Link to Spring WebFlux section is broken

[kenduraghav]

Affects: <Spring Framework version>
5.2.5.RELEASE to 5.2.22.RELEASE, 5.3.24, Current(6.0.0)

Under Other Web Frameworks Spring Webflux link is mapped wrongly which navigates to 404 error page

Would like to contribute and fix the issue.

Regards
Raghav