updated yml file

mlw_packages.yml

@@ -2,14 +2,15 @@
 # for the workshop
 # 'conda env create -f mlw_packages.yml'
 
-name: machine_learning_workshop
+name: mlw-2
 
 channels:
-    - https://repo.anaconda.com/pkgs
+    - https://repo.anaconda.com/pkgs/main
     - conda-forge
 
 dependencies:
     - python==3.6
+    - nomkl
     - pandas
     - matplotlib 
     - scikit-learn