Adds a TODO list for the guru cmd. The main goal is document know
issues that we have not addressed.
Updates golang/go#47326
Updates golang/go#52503
Change-Id: I126b0f06081b606124d89a13f8805fa1ac6e56e3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/403354
TryBot-Result: Gopher Robot <gobot@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
Tim King