analysis: correct go/analysis/passes/findcall path in docs
analysis: correct go/analysis/passes/findcall path in docs

Change-Id: I6c2305b1b52dceff78e289b24f3ad1a5b69c8f7e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/451955
Reviewed-by: Martin Zacho <baff1506c2674f5b091c41ce364a10188d9c9f0c@martinzacho.com>
gopls-CI: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Reviewed-by: Tim King <ee8a1d1efb05d8171fc0140ced15d455e83941c5@google.com>
TryBot-Result: Gopher Robot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Joedian Reid <454f26308bdf67a957daa60c4ad294a9b7c3fcbc@golang.org>
Run-TryBot: Tim King <ee8a1d1efb05d8171fc0140ced15d455e83941c5@google.com>

golang/tools,golang/tools,golang/tools,golang/tools,golang/tools