Update README.md

GUIDE.md

@@ -160,6 +160,7 @@ OPTIONS:
    -fossils                 search fossils if a chunk can't be found
    -resurrect               turn referenced fossils back into chunks
    -files                   verify the integrity of every file
+   -stats 			show deduplication statistics (imply -all and all revisions)
    -storage <storage name>  retrieve snapshots from the specified storage```
 ```
 The *check* command checks, for each specified snapshot, that all referenced chunks exist in the storage.

README.md

@@ -1,10 +1,12 @@
 # Duplicacy: A new generation cloud backup tool
 
-This repository contains only binary releases and documentation for Duplicacy.  It also serves as an issue tracker for user-developer communication during the beta testing phase.
+Duplicacy is a new generation cross-platform cloud backup tool based on the idea of [Lock-Free Dedeuplication]([design document](https://github.com/gilbertchen/duplicacy-beta/blob/master/DESIGN.md)).  Duplicacy is the only backup tool capable of cross-computer deduplication which allows multiple computers to back up to the same storage simultaneously without using any locks (thus readily amenable to various cloud storage services).
 
-## Overview
+The repository hosts design documents as well as binary releases of the command line version.  There is also a Duplicacy GUI frontend built for Windows and Mac OS X downloadable from https://duplicacy.com.  The source code of the command line version is available to the commerical users of the Duplicacy GUI version upon request.
 
-Duplicacy supports major cloud storage providers (Amazon S3, Google Cloud Storage, Microsoft Azure, Dropbox, and BackBlaze) and offers all essential features of a modern backup tool:
+## Features
+
+Duplicacy currently supports major cloud storage providers (Amazon S3, Google Cloud Storage, Microsoft Azure, Dropbox, and Backblaze) and offers all essential features of a modern backup tool:
 
 * Incremental backup: only back up what has been changed
 * Full snapshot : although each backup is incremental, it must behave like a full snapshot for easy restore and deletion
@@ -14,7 +16,7 @@ Duplicacy supports major cloud storage providers (Amazon S3, Google Cloud Storag
 * Concurrent access: multiple clients can back up to the same storage at the same time
 * Snapshot migration: all or selected snapshots can be migrated from one storage to another
 
-The key idea behind Duplicacy is a concept called **Lock-Free Deduplication**, which can be summarized as follows:
+The key idea of **Lock-Free Deduplication** can be summarized as follows:
 
 * Use variable-size chunking algorithm to split files into chunks
 * Store each chunk in the storage using a file name derived from its hash, and rely on the file system API to manage chunks without using a centralized indexing database
@@ -153,7 +155,7 @@ Storage URL:  azure://account/container
 
 You'll need to input the access key once prompted.
 
-#### BackBlaze
+#### Backblaze
 
 ```
 Storage URL: b2://bucket
@@ -161,7 +163,7 @@ Storage URL: b2://bucket
 
 You'll need to input the account id and application key.
 
-BackBlaze offers perhaps the least expensive cloud storage at 0.5 cent per GB per month.  Unfortunately their API does not support file renaming, so the -exclusive option is required when pruning old backups.  This means concurrent access and deletion can't be permitted at the same time.
+Backblaze offers perhaps the least expensive cloud storage at 0.5 cent per GB per month.  Unfortunately their API does not support file renaming, so the -exclusive option is required when pruning old backups.  This means concurrent access and deletion can't be permitted at the same time.
 
 ## Comparison with Other Backup Tools
 
@@ -195,6 +197,10 @@ The following table compares the feature lists of all these backup tools:
 | Encryption         | Yes       | Yes | Yes               | Yes             | Yes               | **Yes**       |
 | Deletion           | No        | No  | Yes               | Yes             | No                | **Yes**       |
 | Concurrent Access  | No        | No  | Exclusive locking | Not recommended | Exclusive locking | **Lock-free** |
-| Cloud Support      | Extensive | No  | No                | No              | S3 only           | **S3, GCS, Azure, Dropbox, BackBlaze**|
+| Cloud Support      | Extensive | No  | No                | No              | S3 only           | **S3, GCS, Azure, Dropbox, Backblaze**|
 | Snapshot Migration | No        | No  | No                | No              | No                | **Yes**       |
 
+
+##License
+
+Duplicacy is free for personal use but any commercial use must be accompanied by a valid [subscription](https://duplicacy.com/buy.html).  This applies to both the CLI and GUI versions.