Add reference to .NET Foundation

LICENSE.txt

@@ -1,4 +1,4 @@
-Copyright (c) Josef Pihrt. All rights reserved.
+Copyright (c) .NET Foundation and Contributors. All Rights Reserved.
 
 Licensed under the Apache License, Version 2.0 (the "License"); you may not use
 these files except in compliance with the License. You may obtain a copy of the

NOTICE.md

@@ -0,0 +1,14 @@
+This project contains code from https://github.com/JosefPihrt/Orang
+
+Copyright (c) Josef Pihrt. All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+these files except in compliance with the License. You may obtain a copy of the
+License at
+
+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.

README.md

@@ -31,6 +31,13 @@ Contributions are welcome! If you are interested please see:
 
 TIP: Bugfixes or small improvements can be implemented right away. Larger task like adding new analyzer or refactoring should be discussed first.
 
+## .NET Foundation
+
+This project is supported by the [.NET Foundation](https://www.dotnetfoundation.org/projects).
+
+This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our community.
+For more information see the [.NET Foundation Code of Conduct](https://dotnetfoundation.org/code-of-conduct). 
+
 ## Command Line Tool
 
 Run following command to install Roslynator command line tool: