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README.md

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-license: cc-by-4.0
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+license: cc-by-4.0
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+**Pixel Annotations of TCGA-RCC and TCGA-LU**: are saved as PNG files, the region marked by white/red/green is the cancer region, and marked by blue is the abandoned region, which also can be regarded as background.  
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+The PNG file name is the case_id of each WSI. Match the original TCGA name with dataset_csv files in our GitHub repo https://github.com/ZeyuGaoAi/SMMILe.
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+Each annotation mask's size equals level 3 of the corresponding WSI. 
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+**Patch Annotations of TCGA-STAD**: are saved as CSV files, each raw indicates a patch with corresponding coordinates, sizes, and annotated labels. 
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+The fine-grained subtype labels of WSIs can be obtained by counting whether patches of certain subtypes appear in each WSI.
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