zhengchun/PaddleX: https://github.com/PaddlePaddle/PaddleX.git @ 855b15473ea9aed2dbeeea0840ead7eb8060c1e0

FlyingQianMM aae92341ae Merge branch 'develop' of https://github.com/PaddlePaddle/PaddleX into develop_qh		5 lat temu
..
images	d883d4b545 update docs	5 lat temu
classification.md	ceb1fdf7d7 update docs	5 lat temu
index.rst	addd5e8910 update docs	5 lat temu
instance_segmentation.md	e1d6041479 add r18_fpn pretrained weights for rcnn	5 lat temu
object_detection.md	e1d6041479 add r18_fpn pretrained weights for rcnn	5 lat temu
prediction.md	c92ecec59c update docs	5 lat temu
semantic_segmentation.md	ceb1fdf7d7 update docs	5 lat temu