doc: Improved documentation for server options. (cherry picked from commit 6754c347117d8450c11f7ad3931caa7584820cfc)
doc: Improved documentation for server options.
(cherry picked from commit 6754c347117d8450c11f7ad3931caa7584820cfc)

mwgoldsmith/libssh,mwgoldsmith/ssh,mwgoldsmith/libssh,miloj/libssh-v0.5,mwgoldsmith/ssh,miloj/libssh-v0.5,mwgoldsmith/ssh,mwgoldsmith/libssh,miloj/libssh-v0.5,mwgoldsmith/libssh,mwgoldsmith/ssh,miloj/libssh-v0.5