Upgrade scikit-learn to 1.0.1, and remove note on atari_py since we use ale_py now

requirements.txt

@@ -11,7 +11,7 @@ pandas~=1.3.3
 scipy~=1.7.1
 
 ##### Machine Learning packages
-scikit-learn~=1.0
+scikit-learn~=1.0.1
 
 # Optional: the XGBoost library is only used in chapter 6
 xgboost~=1.4.2
@@ -54,9 +54,6 @@ gym[Box2D,atari,accept-rom-license]~=0.21.0
 # * Microsoft C++ Build Tools: https://visualstudio.microsoft.com/visual-cpp-build-tools/
 # It's much easier to use Anaconda instead.
 
-# On Windows, install atari_py using:
-# pip install --no-index -f https://github.com/Kojoley/atari-py/releases atari_py
-
 tf-agents~=0.10.0
 
 ##### Image manipulation