Update README.md

hpvm/projects/keras/README.md

@@ -38,6 +38,18 @@ python setup.py build
 python setup.py install
 ```
 
+
+## Download CNN Model Files 
+
+The weight (model) and data files to use with the CNN benchmarks are hosted on Git LFS and need to separately downloaded. This can be done using:
+
+```
+git lfs fetch 
+git lfs checkout 
+```
+
+**NOTE:** Data donwload is necesary before running benchmarks
+
 ## Running Benchmaks
 
 Benchmarks under `./src/`