Update README.md

add news and link to latent diffusion.

Author: rromb

README.md

@@ -15,6 +15,10 @@
 
 
 ### News
+#### 2022
+- More pretrained VQGANs (e.g. a f8-model with only 256 codebook entries) are available in our new work on [Latent Diffusion Models](https://github.com/CompVis/latent-diffusion).
+- Added scene synthesis models as proposed in the paper [High-Resolution Complex Scene Synthesis with Transformers](https://arxiv.org/abs/2105.06458), see [this section](#scene-image-synthesis).
+#### 2021
 - Thanks to [rom1504](https://github.com/rom1504) it is now easy to [train a VQGAN on your own datasets](#training-on-custom-data).
 - Included a bugfix for the quantizer. For backward compatibility it is
   disabled by default (which corresponds to always training with `beta=1.0`).
@@ -63,6 +67,8 @@ for a comparison and discussion of reconstruction capabilities.
 | | |  | | || |
 | VQGAN ImageNet (f=16), 1024 |  10.54 | 7.94 | [vqgan_imagenet_f16_1024](https://heibox.uni-heidelberg.de/d/8088892a516d4e3baf92/) | [reconstructions](https://k00.fr/j626x093) | Reconstruction-FIDs.
 | VQGAN ImageNet (f=16), 16384 | 7.41 | 4.98 |[vqgan_imagenet_f16_16384](https://heibox.uni-heidelberg.de/d/a7530b09fed84f80a887/)  |  [reconstructions](https://k00.fr/j626x093) | Reconstruction-FIDs.
+| VQGAN OpenImages (f=8), 256 | -- | 1.49 |https://ommer-lab.com/files/latent-diffusion/vq-f8-n256.zip |  ---  | Reconstruction-FIDs. Available via [latent diffusion](https://github.com/CompVis/latent-diffusion).
+| VQGAN OpenImages (f=8), 16384 | -- | 1.14 |https://ommer-lab.com/files/latent-diffusion/vq-f8.zip  |  ---  | Reconstruction-FIDs. Available via [latent diffusion](https://github.com/CompVis/latent-diffusion)
 | VQGAN OpenImages (f=8), 8192, GumbelQuantization | 3.24 | 1.49 |[vqgan_gumbel_f8](https://heibox.uni-heidelberg.de/d/2e5662443a6b4307b470/)  |  ---  | Reconstruction-FIDs.
 | | |  | | || |
 | DALL-E dVAE (f=8), 8192, GumbelQuantization | 33.88 | 32.01 | https://github.com/openai/DALL-E | [reconstructions](https://k00.fr/j626x093) | Reconstruction-FIDs.