replace pypi test installation with pypi

Author: delipouya

README.md

@@ -31,10 +31,9 @@ Please make sure to install the following packages **before installing sciRED**:
 numpy, pandas, scanpy, statsmodels, seaborn, [umap-learn](https://pypi.org/project/umap-learn/), matplotlib, scikit-learn, scipy, xgboost, scikit-image, [diptest==0.2.0](https://pypi.org/project/diptest/0.2.0/)
 
 
-sciRED package can be installed using PyPI:
-
+The sciRED package is available for installation via PyPI. Please ensure you install the most up-to-date version.
 ```bash
-pip install -i https://test.pypi.org/simple/ sciRED
+pip install sciRED
 ```
 
 **Common issues**\