small fixes

Makefile

@@ -1,5 +1,5 @@
 # This software is part of libcsdr, a set of simple DSP routines for 
-# Software Defined Radio under BSD license.
+# Software Defined Radio.
 #
 # Copyright (c) 2014, Andras Retzler <randras@sdr.hu>
 # All rights reserved.

README.md

@@ -24,7 +24,7 @@ Credits
 -------
 The library was written by Andras Retzler, HA7ILM &lt;<randras@sdr.hu>&gt;.
 
-I would like to say special thanks to Péter Horváth, HA5CQA and János Selmeczi, HA5FT for their continous help and support.
+I would like to say special thanks to Péter Horváth, PhD (HA5CQA) and János Selmeczi, PhD (HA5FT) for their continous help and support.
 
 Usage by example
 ----------------