minor update of Linux installation instructions

[SarahLucke]

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• Added a library to the needed packages before installation
• fixed an error in where the compiled binary will be located

[samaaron]

Does the linux build create a bin dir to put the executable in? If so, something must have changed in the build tools?

[SarahLucke]

It did at least on my machine (ubuntu-flavor). Feel free to try it yourself