README.md: More clear/concise rsi example (#4); add tracing section (#9)
README.md: More clear/concise rsi example (#4); add tracing section (#9)

piratejon/msp430-emu-uctf,cemeyer/msp430-emu-uctf,nedwill/msp430-emu-uctf,piratejon/msp430-emu-uctf,cemeyer/avr-emu