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README.md

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-Dataset for Aerial Vision-and-Dialog Navigation (AVDN)
+**Dataset for Aerial Vision-and-Dialog Navigation (AVDN)**
+
+This is the AVDN dataset proposed in paper "Aerial Vision-and-Dialog Navigation" 
+
+Paper: https://arxiv.org/pdf/2205.12219
+
+Project webpage: https://sites.google.com/view/aerial-vision-and-dialog/home
+
+We introduced ANDH and ANDH-Full tasks. The ANDH task takes as input the **sub-trajectory** data and you may find instructions to download them at our project webpage.
+The ANDH-Full task needs the **full trajectory** data as input, which is shown in the Huggingface repo.
+
+The data shown in the dataviewer (csv format) is the **full trajectory** data before splited by dialog turns. Please use the following script to convert the csv data into the json format, so that it can fit our current vision of training and inference code.  
 
 
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