Documentation/Tools/SCS Workshop Uploader/Difference between Workshop mod and the Standard mod

1. Workshop mods have more complex layout - versions.sii etc.
2. In normal mods you specify `compatible_versions` in manifest.sii file however for steam workshop mods you specify `compatible_versions` array in versions.sii file.
3. When you are creating standard mod you need to take care about it's distribution and your mod users needs to take care of downloading up-to-date version Steam Workshop mods are automatically downloaded when you send new version to workshop for each mod subscriber.