[chirp_users] Update on Linux Travails

Thanks to all who assisted. Knowing that taking multiple paths through the terminal window might be a bit much for my meager abilities, I found a GUI approach, and added the repository advised on the website in the "software sources" tool, then used the synaptic package manager to install and (a few days later) update. This is all in Linux Mint 20.1.

I may see what update options are available to me in Mint's regular software manager, as my way isn't exactly seamless, but it does work.

Cheers and 73, KF5TJD

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