Update README.md

Author: x448

README.md

@@ -18,7 +18,7 @@ Current features include:
 
 * float16 to float32 conversions use lossless conversion.
 * float32 to float16 conversions use IEEE 754-2008 "Round-to-Nearest RoundTiesToEven".
-* conversions in pure Go take about __2.65 ns/op__ on a desktop amd64.
+* conversions using pure Go take about __2.65 ns/op__ on a desktop amd64.
 * unit tests provide 100% code coverage and check all possible 4+ billion conversions.
 * other functions include: IsInf(), IsNaN(), IsNormal(), PrecisionFromfloat32(), String(), etc.
 * all functions in this library use __zero allocs__ except String().