Dead link on build.sh --help

[GlitchedCode922]

Description

The build.sh help message contains:

* Cross-compile CoreCLR runtime for Linux ARM64 on Release configuration.
./build.sh clr.runtime -arch arm64 -c release -cross

However, for this example, you need to already have ROOTFS_DIR set up.
Further information on this can be found here:
https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/linux-instructions.md

but the link points to a 404 error .

Reproduction Steps

Open https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/linux-instructions.md

Expected behavior

A linux-instructions.md file

Actual behavior

An Error: 404 page

Regression?

No response

Known Workarounds

No response

Configuration

No response

Other information

No response

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[jkotas]

We should update the link to https://github.com/dotnet/runtime/blob/main/docs/workflow/building/coreclr/cross-building.md