update readme

README.md

@@ -23,7 +23,16 @@ widget:
   example_title: 一张<鸣人>男孩的照片
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-# This is a DreamBooth model trained on several public available images from web.
+# This is a DreamBooth model finetuned from the multilingual text-to-image model AltDiffusion.
+
+Dreambooth is one of the method of finetune the pretrained text-to-image model.Given as input just a few images of a subject, it learns to bind a unique identifier with that specific subject.
+
+AltDiffusion which is a multilingual text-to-image model.It currently supports 9 languages and will support more in future.
+We can use the dreambooth to finetune the AltDiffusion,so that we can get a multilingual Dreambooth model which could supports 9 languages.
+
+Here we give a example model finetuned use a dozen pictures of Uzumaki Naruto downloaded from web.The example code of inference is shown bellow.You can have a try and maybe train your own dreambooth.Hopes have fun!
+
+## Example code of inference
 ```
 from diffusers import AltDiffusionPipeline, DPMSolverMultistepScheduler
 import torch