* Fix code blocks in set-up-cluster-federation-kubefed
Two of the code blocks don't render correctly in the [docs page](https://kubernetes.io/docs/tasks/federation/set-up-cluster-federation-kubefed/) (see *Adding a cluster to a federation* section) even though they render correctly in the GitHub preview. Hopefully this PR will fix it.
Plus fixed a few instances where the code blocks in set-up-cluster-federation-kubefed.md don't indicate the code block's language.
* Fix spacing
ThirdPartyResources (TPRs) were removed in v1.8. It is misleading
to still show the docs for TPRs for > v1.8. If one needs to read
docs for TPRs, they can switch to the v1.8 version of the docs
website.
However, the docs of migration of TPRs to CRDs are still not
removed because one can also migrate from v1.7 (when CRDs were
introduced) to v1.7+.
* [Issue #8336] Added a # symbol to What's next
Looking to see if the Table of contents will render properly if all the headers are H4 (####)
* use h2 instead of h4
Gerardo Saca
Steve Perry
Anubhav
Vimal Raghubir
ningning54321
AdamDang
CaoShuFeng
Kazuki Suda
Wen Gao
Nikhita Raghunath
Bjørn Erik Pedersen
WanLinghao
Tom Van Waardhuizen
Chuck Ha
juneharton
Victor Giurgiu
Jonathan Katora
Tim McMackin