Updating install steps in README

Signed-off-by: Brian Baltz <brian.a.baltz@intel.com>

Author: Brian Baltz

README.md

@@ -13,6 +13,6 @@ If you wish to use the latest **untested** changes, follow these instructions.
   * OS X: `~/Library/Arduino15`
   * Linux: `~/.arduino15`
 5. Go to `packages/Intel/hardware/arc32/<version>/`
-6. Delete the content of the directory from step 5, and replace it with the content of the zip from step 2
+6. Delete the content of the directory from step 5, and replace it with the content of the "corelibs-arduino101-master" folder in the zip from step 2.
 
 Future upgrades may fail since the internal contents were modified by hand. In order to recover, shut down the IDE, delete the entire `Arduino15` directory, then restart the IDE.