Add release notes into coredns repo (#2645)

* Put release notes in notes subdir

Verbatim copy of the current set of notes on coredns.io. Copy them
here to make them authoritative.

'make sync' on the coredns.io site copies them back in. They need to be
formatted in Hugo style.

Signed-off-by: Miek Gieben <miek@miek.nl>

* pull latest

Signed-off-by: Miek Gieben <miek@miek.nl>

notes/coredns-1.0.1.md

@@ -0,0 +1,34 @@
++++
+title = "CoreDNS-1.0.1 Release"
+description = "CoreDNS-1.0.1 Release Notes."
+tags = ["Release", "1.0.1", "Notes"]
+draft = false
+release = "1.0.1"
+date = "2017-12-11T14:43:43-00:00"
+author = "coredns"
++++
+
+We are pleased to announce the [release](https://github.com/coredns/coredns/releases/tag/v1.0.1) of CoreDNS-1.0.1!
+
+This release fixes a crash in the *file* plugin and has some minor bug fixes for other plugins.
+One new plugin was added: *nsid*, that implements [RFC 5001](https://tools.ietf.org/html/rfc5001).
+
+## Plugins
+* *file* fixes a crash when an request with a DO bit (pretty much the default) hits an unsigned zone. The default configuration should recover the go-routine, but this is nonetheless serious. *file* received some other fixes when returning (secure) delegations.
+* *dnstap* plugin is now 50% faster.
+* *metrics* fixed the start time bucket for duration.
+
+## Contributors
+
+The following people helped with getting this release done:
+Brad Beam,
+James Hartig,
+Miek Gieben,
+Rene Treffer,
+Ruslan Drozhdzh,
+Seansean2,
+Yong Tang.
+
+If you want to help, please check out one of the
+[issues](https://github.com/coredns/coredns/issues/) and start coding! For documentation and help,
+see our [community page](https://coredns.io/community/).