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>

docs/.gitignore

@@ -0,0 +1,5 @@
+_build/
+_doxygen/
+doxygen/html/
+doxygen/xml/
+sphinx/_toc.yml