Minor revision of README

Author: marnovandermaas

examples/sw/benchmarks/README.md

@@ -1,6 +1,6 @@
 # Benchmarks
 
-This directory contains benchmarks that can be run on ibex simple system.
+This directory contains benchmarks that can be run on Ibex simple system.
 Benchmarks may rely on code external to this directory (e.g. it may be found in
 `vendor/`) see the specific benchmark information below for details on how to
 build and run each benchmark and where benchmark code is located.