Update the document

The README.md is updated for amdsmi

Change-Id: Ic027476d9f6b62e8972793e78db28b12644036ea

docs/amd_smi_doxygen.cfg

@@ -32,7 +32,7 @@ DOXYFILE_ENCODING      = UTF-8
 # title of most generated pages and in a few other places.
 # The default value is: My Project.
 
-PROJECT_NAME           = "ROCmSMI"
+PROJECT_NAME           = "AMDSMI"
 
 # The PROJECT_NUMBER tag can be used to enter a project or revision number. This
 # could be handy for archiving the generated documentation or if some version