Fix more missing doc warnings

[niklaslong]

Follow up to #409 and part of #197.

[niklaslong]

@koivunej This should be mostly ready—I've left some comments for things that I'm unsure of. There are still some 80 (down from 150+) warnings, though I wanted to keep these PRs fairly small given they affect many parts of the codebase.

[koivunej]

I think this is looking really great! Also thanks for the good questions. I left at least one TBD but I think we should start merging this today-ish.

[koivunej]

This feels a bit like an oversight for anyone having to write or read an "MSDN style" piece of documentation.

Looking that

rust-ipfs/src/lib.rs

Lines 387 to 389 in 3fc24b0

	pub fn dag(&self) -> IpldDag<Types> {
	IpldDag::new(self.clone())
	}

exists I am thinking this might be accidentially pub fn. While the current API is of course far from perfect, perhaps I'd like to suggest this:

Suggested change

	/// Creates a new `IpldDag` for DAG operations.
	pub fn new(ipfs: Ipfs<Types>) -> Self {
	IpldDag { ipfs }
	}
	/// Creates a new `IpldDag` for DAG operations.
	// FIXME: duplicates Ipfs::dag(), having both is redundant
	pub fn new(ipfs: Ipfs<Types>) -> Self {
	IpldDag { ipfs }
	}

[koivunej]

This is looking really good!

bors r+

[bors]

Build succeeded:

• ci