typo fix

README.md

@@ -28,7 +28,7 @@ Note that only `value` comes with autograd support, as `index` is discrete and t
 
 ## Installation
 
-Ensure that at least PyTorch 0.4.1 is installed and verify that `cuda/bin` and `cuda/install` are in your `$PATH` and `$CPATH` respectively, *e.g.*:
+Ensure that at least PyTorch 0.4.1 is installed and verify that `cuda/bin` and `cuda/include` are in your `$PATH` and `$CPATH` respectively, *e.g.*:
 
 ```
 $ python -c "import torch; print(torch.__version__)"
@@ -38,7 +38,7 @@ $ echo $PATH
 >>> /usr/local/cuda/bin:...
 
 $ echo $CPATH
->>> /usr/local/cuda/install:...
+>>> /usr/local/cuda/include:...
 ```
 
 Then run: