Update README.md

Author: tectrolabs

README.md

@@ -9,7 +9,7 @@ This repository contains the MicroRNG Software Kit and utilities for using the M
 ## Contents
 
 * `MicroRngSPI.cpp` - API source code in C++ for communicating with the MicroRNG device over SPI interface.
-* `mcdiag.cpp` - general purpose diagnostics utility that interacts with the MicroRNG device for determining the maximum clock speed and for validating communication over SPI interface.
+* `mcdiag.cpp` - general purpose diagnostics utility that interacts with the MicroRNG device for determining the maximum clock speed and for validating the communication over SPI interface.
 * `mcrng.cpp` - utility for downloading random bytes generated by MicroRNG device over SPI interface.
 * `sample.cpp` - sample C++ program that demonstrates how to use the API for communicating with the MicroRNG device over SPI interface.