0.1.1 release
add deltaRead() (#3) - add **int deltaRead(chanA, chanB)** - add example **ADC08XS_deltaRead.ino** - fix select pin in **ADC08XS_read.ino** - update readme.md
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add deltaRead() (#3) - add **int deltaRead(chanA, chanB)** - add example **ADC08XS_deltaRead.ino** - fix select pin in **ADC08XS_read.ino** - update readme.md