This commit adds the first substantial project documentation, expanding the README from a one-line description into a technical overview of how BLE advertising works and why targeting the three advertising channels matters for discoverability jamming. It also documents the nRF2401+ module’s capabilities and ties that hardware choice back to BLE’s narrowband channel design, which makes the implementation easier to understand for contributors. The practical effect is that the repo now has enough context for developers to quickly grasp the approach and hardware assumptions before diving into the code.