Fix broken "data dependencies" link in the Bazel build encyclopedia.
Fixes
"build-ref#labels": "/concepts/labels",
"build-ref#name": "/concepts/labels#target-names",
"build-ref#BUILD_files": "/concepts/build-files",
+ "build-ref#data": "/concepts/dependencies#data-dependencies",
"build-ref#dependencies": "/concepts/dependencies",
"common-definitions": "/reference/be/common-definitions",
"config": "/rules/config",
