[PATCH 1/2] erofs-utils: drop known issue in README

[Li GuiFu]

On 2020/11/16 20:55, Gao Xiang via Linux-erofs wrote:
> From: Gao Xiang <hsiangkao at aol.com>
> 
> Since lz4-1.9.3 has been released,
> https://github.com/lz4/lz4/releases/tag/v1.9.3
> 
> Move this lz4hc issue (lz4 <= 1.8.2) to "Comments" instead.
> 
> Signed-off-by: Gao Xiang <hsiangkao at aol.com>

It looks good
Reviewed-by: Li Guifu <bluce.lee at aliyun.com>
Thanks,