This moves all the documentation under the doc/ tree for consistency.
Replace the link to include/spdk/env.h to raw text - the Doxygen
Markdown parser will automatically turn it into a link since it is a
Doxygen input file.
Change-Id: If6bde1cfc965cada2c741acd5505026545ad4cf7
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Convert to markdown. Our other GitHub files are in markdown
and doxygen natively supports it, so begin converting the
documentation entirely to markdown to minimize the number
of formats we have to comprehend.
Also rename it to index.md to match the other top level
files. Index and mainpage are interchangeable terms in
Doxygen.
Change-Id: I0f7274b47de6411f8d2d09d987fd1344e01a3986
Signed-off-by: Ben Walker <benjamin.walker@intel.com>