Update README.md

README.md

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  **CMIRB** is a specialized multi-task dataset designed specifically for medical information retrieval. It consists of data collected from various medical online websites, encompassing 5 tasks and 10 datasets, and has practical application scenarios.
 
 | Name | Description | Query #Samples | Doc #Samples | 
-|:-----:|:-----:|:---------------------------:|:-----:|:-----:|
+|:-----:|:---------------------------:|:-----:|:-----:|
 | [MedExamRetrieval](https://huggingface.co/datasets/CMIRB/MedExamRetrieval) | Medical multi-choice exam | 697 | 27,871 |
 | [DuBaikeRetrieval](https://huggingface.co/datasets/CMIRB/DuBaikeRetrieval) | Medical search query from BaiDu Search  | 318 | 56,441 |
 | [DXYDiseaseRetrieval](https://huggingface.co/datasets/CMIRB/DXYDiseaseRetrieval) | Disease question from medical website  | 1,255 | 54,021 |
-| [MedicalRetrieval](https://huggingface.co/datasets/C-MTEB/MedicalRetrieval) | Passage retrieval dataset collected from Alibaba search engine systems in medical domain | 1,000  | 100,999 |
+| [MedicalRetrieval](https://huggingface.co/datasets/C-MTEB/MedicalRetrieval) | Passage retrieval dataset collected from Alibaba | 1,000  | 100,999 |
 | [CmedqaRetrieval](https://huggingface.co/datasets/C-MTEB/CmedqaRetrieval) |  Online medical consultation text | 3,999 | 100,001 |
 | [DXYConsultRetrieval](https://huggingface.co/datasets/CMIRB/DXYConsultRetrieval) | Online medical consultation text  | 943 | 12,577 |
 | [CovidRetrieval](https://huggingface.co/datasets/C-MTEB/CovidRetrieval) | COVID-19 news articles | 949  | 100,001 |