Clean up attribute documentation hoping to make it clearer. Specifically that labels and label_lists are actually of type Target, and adding more cross linking to various documentation to make it easier to peruse.
Clean up attribute documentation hoping to make it clearer. Specifically that labels and label_lists are actually of type Target, and adding more cross linking to various documentation to make it easier to peruse.

Tested all of the links to make sure they work.

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MOS_MIGRATED_REVID=116076080

davidzchen/bazel-website,davidzchen/bazel-website,bazelbuild/bazel-website,bazelbuild/bazel-website,davidzchen/bazel-website,davidzchen/bazel-website,bazelbuild/bazel-website