Update README.md

README.md

 ##What have i used it for?
 
 The app uses multiple threads to do uploads. I am running on a machine in the house with 2 8 core Xeons and 64Gb ram. With this, it kicks of something like 64 threads (the test folder only had 48 files, so all started uploading immediatly!). 
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+##Comments?
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+* [Post on Reddit](https://www.reddit.com/r/DataHoarder/comments/3xbx6y/b2_uploader_upload_directories_to_b2/)