admin-guide/basic: finish guide me

Signed-off-by: Dunrong Huang <riegamaths@gmail.com>
admin-guide/basic: fix picture title

The picture title in docbook will be insert a number so that we shouldn't
add it byself.

Signed-off-by: Dunrong Huang <riegamaths@gmail.com>
admin-guide/basic: fix docbook format error caused by jiansheng

哈哈, 我总觉得奇怪呢, 原来是最后的一个小结格式没对.
                  -- 论编辑器的重要性(mathslinux)

Signed-off-by: Dunrong Huang <riegamaths@gmail.com>
admin-guide/basic: finish documentaion for searching

Signed-off-by: Dunrong Huang <riegamaths@gmail.com>
admin-guide/basic: finish saving as bookmark.

now, all basic documentation is over!

Signed-off-by: Dunrong Huang <riegamaths@gmail.com>