Update Readme.md

aws/cl_zcash/software/runtime/Readme.md

@@ -1,20 +1,28 @@
 1. ecdsa_test.cpp: hardcoded several TV and feed to FPGA for test;
 
 - Compile the ecdsa_test.cpp
-make -f makefile_ecdsa
+
+  make -f makefile_ecdsa
 
 - Usage: (before doing below, make sure you had already load the fpga image, check master help document)
-sudo ./ecdsa_test
+
+  sudo ./ecdsa_test
+
 
 -----------------------------
 
+
 2. openssl_verify.cpp: utilize the openssl lib to generate the test vector dynamiclly and feedback to fpga for verify test.
 
 - Compile the openssl_verify.cpp
-make -f openssl_verify.cpp
+
+  make -f openssl_verify.cpp
 
 - Usage: (before doing below, make sure you had already load the fpga image, check the master help document)
-sudo ./openssl_verify <iteration num> <verbose: t | f>
 
-<iteration num> is used to define how much round test to be done, just give a number;
-<verbose> control if you want to output more information(t) or not(f) 
+  sudo ./openssl_verify [iteration_num] [verbose: t | f]
+
+
+  [iteration num] is used to define how much round test to be done, just give a number;
+
+  [verbose] control if you want to output more information(t) or not(f)