Image mistaken of RNN sample in demo\text_classification\README.md

Update serving.md "texts" -> "text"

参数名应为“text”而非“texts”，否则 api 会报错

{
    "msg": "cut() got an unexpected keyword argument 'texts'",
    "results": "",
    "status": "101"
}

update readme

add suffix for ChunkEvaluator

修复animeGan不应支持batch_size问题。