[docs] Fix broken remote execution services link
[docs] Fix broken remote execution services link

This link was giving a 404 because that page doesn't live at the root of https://docs.bazel.build/ but in https://www.bazel.build.

Closes #14449.

PiperOrigin-RevId: 417496552

cushon/bazel,bazelbuild/bazel,bazelbuild/bazel,ButterflyNetwork/bazel,ButterflyNetwork/bazel,bazelbuild/bazel,ButterflyNetwork/bazel,cushon/bazel,cushon/bazel,ButterflyNetwork/bazel,bazelbuild/bazel,katre/bazel,katre/bazel,cushon/bazel,ButterflyNetwork/bazel,cushon/bazel,katre/bazel,bazelbuild/bazel,katre/bazel,katre/bazel,ButterflyNetwork/bazel,katre/bazel,bazelbuild/bazel,cushon/bazel