Updated Armv8.2 SM3和SM4 (markdown)

Armv8.2-SM3和SM4.md

@@ -26,6 +26,18 @@ AESE指令相当于：
 1. ShiftRows(State)
 1. SubBytes(State)
 
+    go test -v -short -bench . -run=^$ ./...
+    goos: linux
+    goarch: arm64
+    pkg: github.com/emmansun/gmsm/sm4
+    BenchmarkEncrypt
+    BenchmarkEncrypt-2   	 1738942	       690.0 ns/op	  23.19 MB/s
+    BenchmarkDecrypt
+    BenchmarkDecrypt-2   	 1738872	       690.3 ns/op	  23.18 MB/s
+    BenchmarkExpand
+    BenchmarkExpand-2    	 2059227	       582.7 ns/op
+    PASS
+    ok  	github.com/emmansun/gmsm/sm4	5.595s
 
 ## Reference
 SM3和SM4 CPU指令实现，找不到相关CPU环境，mark先。