Merge pull request #2995 from gurjeet/zfs_driver_owner

Add contrb/zfs/ and add self as maintainer of ZFS storage driver.

contrib/zfs/MAINTAINERS

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+Gurjeet Singh <gurjeet@singh.im> (gurjeet.singh.im)

contrib/zfs/README.md

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+# ZFS Stroage Driver
+
+This is a placeholder to declare the presence and status of ZFS storage driver
+for containers.
+
+The current development is done in Gurjeet Singh's fork of Docker, under the
+branch named [zfs_driver].
+
+[zfs_driver]: https://github.com/gurjeet/docker/tree/zfs_driver
+
+
+# Status
+
+Pre-alpha
+
+The code is under development. Contributions in the form of suggestions,
+code-reviews, and patches are welcome.
+
+Please send the communication to gurjeet@singh.im and CC at least one Docker
+mailing list.
+
+