Update instructions.

README.md

@@ -21,8 +21,8 @@ python -m venv env
 source env/bin/activate
 
 # install dependencies
-pip install --force-reinstall -i https://pypi.anaconda.org/intel/simple --no-dependencies numpy scipy
-pip install numpy scipy
+pip install --force-reinstall --index-url https://pypi.anaconda.org/intel/simple --no-dependencies numpy scipy==1.7.3
+pip install numpy scipy==1.7.3
 pip install torch --index-url https://download.pytorch.org/whl/cpu
 
 # install dependencies for the analysis in the notebook
@@ -45,10 +45,8 @@ While the dependencies should be automatically used, using the Intel-optimized `
 This has been tested with `scipy==1.7.3`, but it should work with any version of scipy and numpy.
 ```
 # install the optimized numpy and scipy versions
-# skip dependencies
-pip install --force-reinstall -i https://pypi.anaconda.org/intel/simple --no-dependencies numpy scipy
-# now install dependencies
-pip install numpy scipy
+pip install --force-reinstall --index-url https://pypi.anaconda.org/intel/simple --no-dependencies numpy scipy==1.7.3
+pip install numpy scipy==1.7.3
 # install PyTorch
 pip install torch --index-url https://download.pytorch.org/whl/cpu
 ```