added Win build instructions to RELEASE_INSTRUCTIONS
added Win build instructions to RELEASE_INSTRUCTIONS

NLMichaud/nimble,nimble-dev/nimble,nimble-dev/nimble,NLMichaud/nimble,nxdao2000/nimble,nimble-dev/nimble,nimble-dev/nimble,nimble-dev/nimble,NLMichaud/nimble,nxdao2000/nimble,nxdao2000/nimble,nxdao2000/nimble,NLMichaud/nimble