Installation on Ubuntu 19.10

[haiitch]

Two problems with the installation instructions:

1. The Ubuntu SDK PPA structure has changed or moved, most packages are now available as part of the current unstable release, except for qtquick2, which appears to be now provided by the package qml-module-qtquick2.

The following should do on 19.10 without having to install an extra PPA:

$ sudo apt-get install qtdeclarative5-dev qtbase5-private-dev qtdeclarative5-private-dev libqt5opengl5-de qml-module-qtquick2

2. Despite this making installation simpler in appearance, other problems appear to have been introduced when attempting to go get the Go package. Screenshot follows: