Fix Who's Using Bazel? link in docs footer.
Fix Who's Using Bazel? link in docs footer.

PiperOrigin-RevId: 424748634

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