Fix #56: erroneous pinmap name in README.md

README.md

@@ -497,7 +497,7 @@ const lmic_pinmap lmic_pins = {
  .rst = 8,
  .dio = {25, 26, 27},
  // the Murata module needs D29 high for RX, low for TX.
- .rxtx_rx_polarity = 1,
+ .rxtx_rx_active = 1,
  // the Murata module is direct-wired, we can use 8 MHz for SPI.
  .spi_freq = 8000000
 };