Merge pull request #233 from hpcaitech/docs/fix

Docs/fix

README.md

@@ -149,6 +149,8 @@ the config files.
 | 16×256×256 | 20K HQ | 24k         | 8×64       | 45              | [:link:](https://huggingface.co/hpcai-tech/Open-Sora/blob/main/OpenSora-v1-HQ-16x256x256.pth) |
 | 16×256×256 | 366K   | 80k         | 8×64       | 117             | [:link:](https://huggingface.co/hpcai-tech/Open-Sora/blob/main/OpenSora-v1-16x256x256.pth)    |
 
+Training orders: 16x256x256 $\rightarrow$ 16x256x256 HQ $\rightarrow$ 16x512x512 HQ.
+
 Our model's weight is partially initialized from [PixArt-α](https://github.com/PixArt-alpha/PixArt-alpha). The number of
 parameters is 724M. More information about training can be found in our **[report](/docs/report_v1.md)**. More about
 the dataset can be found in [datasets.md](/docs/datasets.md). HQ means high quality.