Fixes so instructions work on Ubuntu
The instructions as given were not clear and had mistakes on Ubuntu -- especially https://blogs.oracle.com/joshis/sudo-echo-does-not-work-together-in-ubuntu-another-waste-of-time-issue
I only edited README.md
The instructions as given were not clear and had mistakes on Ubuntu -- especially https://blogs.oracle.com/joshis/sudo-echo-does-not-work-together-in-ubuntu-another-waste-of-time-issue
I only edited README.md