Build from source fails

[cement-head]

git clone https://github.com/aggalex/Wineglass.git com.github.aggalex.Wineglass && cd com.github.aggalex.Wineglass
meson build
meson configure -Dprefix=/usr
ninja install

gives:

$ ninja install
ninja: error: loading 'build.ninja': No such file or directory

build.ninja is located inside of the build directory, change that directory first, then execute last command. Therefore the instructions should be:

git clone https://github.com/aggalex/Wineglass.git com.github.aggalex.Wineglass && cd com.github.aggalex.Wineglass
meson build
meson configure -Dprefix=/usr
cd build
ninja install