update readme

examples/Atari2600/README.md

@@ -43,4 +43,4 @@ To visualize the agent:
 ./DQN.py --rom breakout.bin --task play --load pretrained.model
 ```
 
-A3C code will be released in about a week.
+A3C code will be released very soon.

examples/DoReFa-Net/README.md

@@ -2,8 +2,8 @@ Code and model for the paper:
 
 [DoReFa-Net: Training Low Bitwidth Convolutional Neural Networks with Low Bitwidth Gradients](http://arxiv.org/abs/1606.06160), by Zhou et al.
 
-We hosted a demo at CVPR16 on behalf of Megvii, Inc, running real-time half-VGG size DoReFa-Net on both ARM and FPGA.
-But we're not planning to release those runtime bit-op libraries for now. In these examples, bit operations are run in float32.
+We hosted a demo at CVPR16 on behalf of Megvii, Inc, running real-time 1/4 VGG size DoReFa-Net on both ARM and FPGA.
+We're not planning to release those runtime bit-op libraries for now. In these examples, bit operations are run in float32.
 
 Pretrained model for 1-2-6-AlexNet is available at
 [google drive](https://drive.google.com/a/%20megvii.com/folderview?id=0B308TeQzmFDLa0xOeVQwcXg1ZjQ).