[bazel.build] Problem with /tutorials/ccp-toolchain-config

[NERanger]

Page link:

https://bazel.build/tutorials/ccp-toolchain-config

Problem description (include actual vs expected text, if applicable):

The page https://bazel.build/concepts/platforms says that currently --crosstool_top and --cpu are not encouraged, but the tutorial still uses them

Where do you see this issue? (include link to specific section of the page, if applicable)

https://bazel.build/tutorials/ccp-toolchain-config?hl=zh-cn#before_you_begin

Any other information you'd like to share?

This page https://bazel.build/concepts/platforms says we prefer

bazel build //:my_cpp_project --platforms=//:myplatform

over

bazel build //:my_cpp_project` --cpu=... --crosstool_top=...  --compiler=...