Remove CRAN download count badge from READMEs

Author: cafferychen777

README.md

@@ -14,7 +14,6 @@
 
 <div align="center">
   <a href="https://CRAN.R-project.org/package=mLLMCelltype"><img src="https://www.r-pkg.org/badges/version/mLLMCelltype" alt="CRAN version"></a>
-  <a href="https://CRAN.R-project.org/package=mLLMCelltype"><img src="https://cranlogs.r-pkg.org/badges/grand-total/mLLMCelltype" alt="CRAN downloads"></a>
   <img src="https://img.shields.io/github/license/cafferychen777/mLLMCelltype" alt="License">
   <a href="https://www.biorxiv.org/content/10.1101/2025.04.10.647852v1"><img src="https://img.shields.io/badge/bioRxiv-2025.04.10.647852-blue" alt="bioRxiv preprint"></a>
   <a href="https://pypi.org/project/mllmcelltype/"><img src="https://img.shields.io/pypi/v/mllmcelltype" alt="PyPI version"></a>

README_CN.md

@@ -14,7 +14,6 @@
 
 <div align="center">
   <a href="https://CRAN.R-project.org/package=mLLMCelltype"><img src="https://www.r-pkg.org/badges/version/mLLMCelltype" alt="CRAN version"></a>
-  <a href="https://CRAN.R-project.org/package=mLLMCelltype"><img src="https://cranlogs.r-pkg.org/badges/grand-total/mLLMCelltype" alt="CRAN downloads"></a>
   <img src="https://img.shields.io/github/license/cafferychen777/mLLMCelltype" alt="License">
   <a href="https://www.biorxiv.org/content/10.1101/2025.04.10.647852v1"><img src="https://img.shields.io/badge/bioRxiv-2025.04.10.647852-blue" alt="bioRxiv"></a>
   <a href="https://pypi.org/project/mllmcelltype/"><img src="https://img.shields.io/pypi/v/mllmcelltype" alt="PyPI version"></a>