Fix testcase from Uber Quick guide.

[ccarouge]

CABLE

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Description

Fixes #(285)
Change Uber Quick guide instructions to run the testcase from src/offline/ since for now CABLE needs the namelists in the run directory.

Type of change

Please delete options that are not relevant.

• New or updated documentation

Checklist

• The new content is accessible and located in the appropriate section.
• I have checked that links are valid and point to the intended content.
• I have checked my code/text and corrected any misspellings

Please add a reviewer when ready for review.

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📚 Documentation preview 📚: https://cable--286.org.readthedocs.build/en/286/

[ccarouge]

I have checked that running the cable executable from within src/offline/ is successful at running the testcase

[SeanBryan51]

Approving so we have a working example in the docs, but I'm not really a fan of having the inputs mixed up with source files or running the model in the src/offline directory as log files and such will be dumped into the repo.

[ccarouge]

I'm not really a fan of having the inputs mixed up with source files or running the model in the src/offline directory

Totally agree but we need to work with what we currently have and improve as we go.