Revert "label chart initial version"

This reverts commit 91cc983f7be8e71fe7004a15e9614ed908af20fe.
Revert "label chart readme"

This reverts commit 6056b1a0a36b8eed05206ec213e5ce94534d0716.
Revert "Revert "label chart readme""

This reverts commit 455f1f7972e0801a79df7a84ac01f1d9057445df.
Revert "Revert "Revert "label chart readme"""

This reverts commit 34b870a61bb3749d83e6a8fea1191fdfc0261576.
数值显示组件
add doc