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-0.9.10.md

@@ -0,0 +1,50 @@
++++
+title = "CoreDNS-0.9.10 Release"
+description = "CoreDNS-0.9.10 Release Notes."
+tags = ["Release", "0.9.10", "Notes"]
+draft = false
+release = "0.9.10"
+date = "2017-11-03T20:45:43-00:00"
+author = "coredns"
++++
+
+CoreDNS-0.9.10 has been [released](https://github.com/coredns/coredns/releases/tag/v0.9.10)!
+
+CoreDNS is a DNS server that chains plugins, where each plugin implements a DNS feature.
+
+Release 0.9.10 is a minor release, with some fixes.
+
+## Core
+
+* The reverse zone syntax was extended to allow non-octet boundaries:
+
+   ~~~
+   192.168.1.0/17 {
+       ...
+   }
+   ~~~
+
+   Will behave correctly.
+
+* Lots of documentation clean ups.
+* More platforms have binaries for each release.
+
+## Plugins
+
+* *dnssec* will now insert DS records (and sign them) when it signs a delegation response.
+* *host* now checks for /etc/hosts updates in a separate go-routine.
+
+## Contributors
+
+The following people helped with getting this release done:
+Chris O'Haver,
+Miek Gieben,
+Pat Moroney,
+Paul Hoffman,
+Sandeep Rajan,
+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/).