Update test.c to test_basic.c (#1049)

diff --git a/tests/README b/tests/README
index 0dc6981..bfa77c5 100644
--- a/tests/README
+++ b/tests/README
@@ -1,6 +1,6 @@
 This directory contains some test code to show how to use Capstone API.
 
-- test.c
+- test_basic.c
   This code shows the most simple form of API where we only want to get basic
   information out of disassembled instruction, such as address, mnemonic and
   operand string.