Update License section in README

Author: mar-v-in

LICENSE

@@ -10,16 +10,6 @@ Requires the FAKE_PACKAGE_SIGNATURE patch to be functional.
 
 License
 -------
-    Copyright 2013-2016 microG Project Team
-
-    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
-
-    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.
+- Code is licensed under [Apache License 2.0](LICENSES/Apache-2.0)
+- Documentation and artwork are licensed under [Creative Commons Attribution-ShareAlike 4.0](LICENSES/CC-BY-SA-4.0)
+- Some files are placed unter the public domain using [Creative Commons CC0 1.0 Public Domain Dedication](LICENSES/CCO-1.0)