* Makefile: fix echo for some environments by replacing escape chars with explicit formatting by spaces and new lines * Dockerfile: extend comments for documentation purpose & switch WORKDIR to IronOS source tree root dir for the seamless workflow
* Makefile: fix echo for some environments by replacing escape chars with explicit formatting by spaces and new lines * Dockerfile: extend comments for documentation purpose & switch WORKDIR to IronOS source tree root dir for the seamless workflow