Merge pull request kahun#473 from abhi18av/patch-1

added the link for restic backup tool

README.md

@@ -77,6 +77,7 @@ Please read [CONTRIBUTING](./CONTRIBUTING.md) if you wish to add software.
 * [Duplicity](http:https://duplicity.nongnu.org/) - Encrypted bandwidth-efficient backup using the rsync algorithm.
 * [FreeFileSync](http:https://www.freefilesync.org) - Folder comparison and synchronization tool.
 * [Lsyncd](https://github.com/axkibe/lsyncd) - File Monitor which spawns a process to synchronize the changes (rsync by default).
+* [restic](https://github.com/restic/restic) - Fast, secure, efficient backup program 
 * [Rsnapshot](http:https://www.rsnapshot.org/) - Filesystem Snapshotting Utility.
 * [SafeKeep](http:https://safekeep.sourceforge.net/) - Centralized pull-based backup using `rdiff-backup`.
 * [Snebu](http:https://www.snebu.com/) – Snapshot backup with global multi-client deduplication and transparent compression.