README - 修正 Markdown 語法

Signed-off-by: Ｖ字龍(Vdragon) <pika1021@gmail.com>
README: fix Markdown syntax

sentences needs 2 spaces to break line.

Signed-off-by: Ｖ字龍(Vdragon) <pika1021@gmail.com>
README: 新增「軟體依賴關係」段落

Signed-off-by: Ｖ字龍(Vdragon) <pika1021@gmail.com>
README - fix typo

Signed-off-by: Ｖ字龍(Vdragon) <pika1021@gmail.com>