Link from Fuse type docstring to iter.fuse that creates them

[sourcefrog]

No description provided.

[sourcefrog]

from https://users.rust-lang.org/t/rfc-link-from-struct-docs-to-their-constructors/3176

[rust-highfive]

r? @aturon

(rust_highfive has picked a reviewer for you, use r? to override)

[sourcefrog]

r? @steveklabnik

[alexcrichton]

@bors: r+ 22404e1

Thanks!

[bors]

⌛ Testing commit 22404e1 with merge 0ea1305...

[bors]

☀️ Test successful - auto-linux-32-nopt-t, auto-linux-32-opt, auto-linux-64-nopt-t, auto-linux-64-opt, auto-linux-64-x-android-t, auto-mac-32-opt, auto-mac-64-nopt-t, auto-mac-64-opt, auto-win-gnu-32-nopt-t, auto-win-gnu-32-opt, auto-win-gnu-64-nopt-t, auto-win-gnu-64-opt, auto-win-msvc-32-opt, auto-win-msvc-64-opt