Update the installation steps of the readme file to add the creation of the installation folder for the osf-installer tool.
Update the installation steps of the readme file to add the creation of the installation folder for the osf-installer tool.

neuroidss/Open-Semantic-Framework-Installer,structureddynamics/Open-Semantic-Framework-Installer,lpalgarvio/Open-Semantic-Framework-Installer,neuroidss/Open-Semantic-Framework-Installer,lpalgarvio/Open-Semantic-Framework-Installer,structureddynamics/Open-Semantic-Framework-Installer