workflows.json: Add docs to sandbox program The empty sandbox program fails because programs need to have at least one entry. This causes problems for recipe testing which often operates on 'main'. Change-Id: Id717a9533b028f498ffcb78b91a7ee3ddef123db Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/415492
Pigweed is an open source collection of embedded-targeted libraries–or as we like to call them, modules. These modules are building blocks and infrastructure that enable faster and more reliable development on small-footprint MMU-less 32-bit microcontrollers like the STMicroelectronics STM32L452 or the Nordic nRF52832.
For more information please see our website: https://pigweed.dev/.