Fixing old instructions in the README to match the new directory structure.
Fixing old instructions in the README to match the new directory structure.

embaldridge/retriever,bendmorris/retriever,embaldridge/retriever,bendmorris/retriever,embaldridge/retriever,goelakash/retriever,davharris/retriever,davharris/retriever,bendmorris/retriever,henrykironde/deletedret,goelakash/retriever,henrykironde/deletedret,davharris/retriever