fix(rl): correct README structure and references-cann-learning-hub-AtomGit

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已合并

fix(rl): correct README structure and references #450

zhoujian创建于 7月28日从mystri/cann-learning-hub： fix/rl-readme-structure 合入到 cann/cann-learning-hub： test

fix(rl): correct README structure and references #450

已合并

zhoujian创建于 7月28日

从mystri/cann-learning-hub fix/rl-readme-structure合入到cann/cann-learning-hub test