NEWS.md: add news entries for release 1

More of a description of the project and existing functionality
than highlights.

NEWS.md

@@ -0,0 +1,42 @@
+# koji-osuild  - Koji and OSBuild integration
+
+
+## CHANGES WITH 1:
+
+  * Initial implementation of three plugins for the koji
+    hub, the builder and command line client, which allows
+    images and other OS artifacts to be built in composer
+    via koji.
+
+  * The *command line client* gained an `osbuild-image`
+    sub-command that is very similar to `image-build`.
+    It internally uses the new hub plugin to make a XML-RPC
+    call, `osbuildImage` to request the building of a new
+    image or artifact.
+
+  * The *hub* plugin adds the `osbuildImage` XML-RPC method,
+    verifies the parameters and then creates a new task of
+    type `osbuildImage`.
+
+  * The *builder* plugin does most of the work by adding a
+    handler for `osbuildImage` tasks. It will use the new
+    koji API of osbuild-composer version 21 to request a
+    compose and wait until it is done. After a successful
+    build the result will be tagged into the destination
+    tag of the build target.
+
+  * An integration test suite was added to CI that checks
+    the end-to-end building of a cloud image on RHEL and
+    Fedora.
+
+  * Unit tests currently cover around 92% of the plugins.
+
+  * Detailed instructions on how to run a local test setup
+    are included in `HACKING.md`.
+
+
+Contributions from: Christian Kellner, Lars Karlitski &
+                    Tom Gundersen
+
+
+— Berlin, 2020-09-30