Merge branch 'xs/update' into 'master'

update readme

See merge request open-mmlab/mmaction-lite!208

configs/recognition/r2plus1d/README.md

 # R2plus1D
 config | pretrain | top1 acc| top5 acc | gpu_mem(M) | iter time(s) | ckpt | log
 -|-|-|-|-|-|- | -
-r2plus1d_r34_3d_8x8x1_180e_kinetics400_rgb | None |68.68|88.36|14492|3.49|[ckpt]()| [log]()
-r2plus1d_r34_3d_32x2x1__180e_kinetics400_rgb|None|-|-|12971|1.52| [ckpt]() | [log]()
+r2plus1d_r34_3d_8x8x1_180e_kinetics400_rgb | None |68.68|88.36|5014|0.68|[ckpt]()| [log]()
+r2plus1d_r34_3d_32x2x1__180e_kinetics400_rgb|None|74.60|91.59|9003|1.23| [ckpt]() | [log]()

configs/recognition/slowfast/README.md

 # Slowfast
 config | pretrain | top1 acc| top5 acc | gpu_mem(M) | iter time(s) | ckpt | log
 -|-|-|-|-|-|- | -
-slowfast_r50_3d_4x16x1_256e_kinetics400_rgb | None |75.3|92.2|9156|1.05|[ckpt]()| [log]()
-slowfast_r50_3d_8x8x1_256e_kinetics400_rgb|None|-|-|7402|0.84| [ckpt]() | [log]()
+slowfast_r50_3d_4x16x1_256e_kinetics400_rgb | None |75.3|92.2|6250|0.826|[ckpt]()| [log]()
+slowfast_r50_3d_8x8x1_256e_kinetics400_rgb|None|76.36|92.56|9159|1.032| [ckpt]() | [log]()