Update README

Remove references to "klipper", which has never actually existed as a project/product; remove duplicate license info.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

Author: brandond

README.md

@@ -1,8 +1,9 @@
 klipper-helm
 
-This is the image that run helm install/upgrade/remove for the
-integrated helm support in klipper.  The approach is extremely
-simple. This is just a single shell script.
+This repo builds the image that runs helm install/upgrade/remove operations for
+the [helm controller](https://github.com/k3s-io/helm-controller) built in to
+K3s and RKE2. The approach is extremely simple. This is just a single shell
+script.
 
 ## Building
 
@@ -11,19 +12,4 @@ simple. This is just a single shell script.
 ## Contact
 
 For bugs, questions, comments, corrections, suggestions, etc., open an issue in
-[k3s-io/helm-controller](//github.com/k3s-io/helm-controller/issues).
-
-## License
-Copyright (c) 2019-2025 [Rancher Labs, Inc.](http://rancher.com)
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-[http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0)
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
+[k3s-io/helm-controller](https://github.com/k3s-io/helm-controller/issues).