Update Linux installation docs to resolve dependencies
Update Linux installation docs to resolve dependencies

Use `dpkg -i` followed by `apt-get install -f`. Alternatives considered
included using `apt install`, which does not work, and copying the
PowerShell package to `/var/cache/apt/archives` which is just as messy
as this. At least this follows the same steps as `download.sh`.

daxian-dbw/PowerShell,JamesWTruher/PowerShell-1,JamesWTruher/PowerShell-1,daxian-dbw/PowerShell,daxian-dbw/PowerShell,PaulHigin/PowerShell,TravisEz13/PowerShell,PaulHigin/PowerShell,JamesWTruher/PowerShell-1,PaulHigin/PowerShell,TravisEz13/PowerShell,TravisEz13/PowerShell,daxian-dbw/PowerShell,PaulHigin/PowerShell,TravisEz13/PowerShell,JamesWTruher/PowerShell-1