SWDEV-436821 Update hip samples Readme files

Change-Id: I6bf3a72eac4a4242cb2dbf4e6eee73e0e1bef2ef

samples/0_Intro/module_api/README.md

@@ -0,0 +1,19 @@
+# module_api
+
+- Steps to build this sample
+
+```
+$ mkdir build; cd build
+$ cmake .. -DCMAKE_PREFIX_PATH=/opt/rocm
+$ make
+```
+
+- Execute Code
+```
+$ ./launchKernelHcc.hip.out
+PASSED!
+$ ./runKernel.hip.out
+PASSED!
+$ ./defaultDriver.hip.out
+PASSED!
+```