DesignCraft guides

1. 01How to install DesignCraft on macOS, Windows and LinuxWhich DesignCraft 0.6.0 file to download for your OS and CPU, how to verify it, and how to build DesignCraft from source. Based on the official README and the v0.6.0 release.
2. 02DesignCraft: a free, open-source Adobe InDesign alternativeWhat DesignCraft 0.6.0 is, what it already does, and where it still falls short of Adobe InDesign. Based only on the official DesignCraft README and docs.