installation instructions issues

[vshioshvili]

@ashaban @citizenrich at this point, this is not a big issue, but when you get a chance, please fix the instructions for building the facility-recon-gui dhis2 app. At the end of https://facility-recon.readthedocs.io/en/latest/dev/install.html it currently says:

cp -r facility-recon/facility-recon-gui/dist/* facility-reco/dhis2App/
cd facility-recon/dhis2App
rm GOFR.zip
zip GOFR.zip ./*

However, there are two issues. On line 1, it should be build instead of dist, and on line 4 it needs -r option for the zip command (should be zip -r GOFR.zip ./*), otherwise folders are zipped empty, and it causes the app not to load.

cc @lduncan-intrah