[OCaml] Use a nicer style for documentation than OCaml default.

In particular, it's much easier to read, as it doesn't expand all
the way on wide-screen displays.

CSS committed under LLVM license with explicit permission from
Daniel Bünzli <daniel.buenzli@erratique.ch>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242511 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed