Wrong path to standalone ROOT `cvmfs` example

[guitargeek]

In the explanation on how to source standalone ROOT, there is a problem with the path:
https://root.cern/install/#standalone-root

source /cvmfs/sft.cern.ch/lcg/app/releases/ROOT/6.30.02/-almalinux9-.3-x86_64-gcc11-opt/bin/thisroot.sh

The correct path would be:

source /cvmfs/sft.cern.ch/lcg/app/releases/ROOT/6.30.02/x86_64-almalinux9.3-gcc114-opt/bin/thisroot.sh

This needs to be fixed in the creation of the root_stable_dir variable:
https://github.com/root-project/web/pull/838/files

Alternatively, maybe one can just link to the release website of latest stable, where the cvmfs path is also listed explicitly.

[couet]

I'll check root_stable_dir