Initial ROCm-docs (#92)

* Initial ROCm-docs commit

Co-authored-by: Aurélien Bouteiller <bouteill@icl.utk.edu>
Co-authored-by: Alex Xu <alex.xu@amd.com>
Co-authored-by: yugang-amd <yugang.wang@amd.com>

include/rocshmem/rocshmem.hpp

@@ -52,6 +52,8 @@
 
 namespace rocshmem {
 
+constexpr char VERSION[] = "2.0.0";
+
 /******************************************************************************
  **************************** HOST INTERFACE **********************************
  *****************************************************************************/