update README & HACK with SystemZ information
diff --git a/README b/README
index 61ea32d..01e07dd 100644
--- a/README
+++ b/README
@@ -4,8 +4,8 @@
 Created by Nguyen Anh Quynh, then developed and maintained by a small community,
 Capstone offers some unparalleled features:
 
-- Support multiple hardware architectures: ARM, ARM64 (ARMv8), Mips, PPC, Sparc
-  and X86.
+- Support multiple hardware architectures: ARM, ARM64 (ARMv8), Mips, PPC, Sparc,
+  SystemZ and X86.
 
 - Having clean/simple/lightweight/intuitive architecture-neutral API.