fix minio license

- fixes https://github.com/awesome-foss/awesome-sysadmin/issues/461

README.md

@@ -325,7 +325,7 @@ _See also: [IT Asset Management]([Ralph](#it-asset-management))_
 - [HDFS](http://hadoop.apache.org/) - Distributed, scalable, and portable file-system written in Java for the Hadoop framework.
 - [LeoFS](http://leo-project.net) - Unstructured object/data storage and a highly available, distributed, eventually consistent storage system.
 - [Lustre](http://lustre.org/) - Parallel distributed file system, generally used for large-scale cluster computing.
-- [Minio](https://minio.io/) - Minio is an open source object storage server compatible with Amazon S3 APIs. ([Source Code](https://github.com/minio/minio)) `Apache-2.0` `Go`
+- [Minio](https://minio.io/) - Minio is an open source object storage server compatible with Amazon S3 APIs. ([Source Code](https://github.com/minio/minio)) `AGPL-3.0` `Go`
 - [MooseFS](http://www.moosefs.org/) - Fault tolerant, network distributed file system.
 - [OpenAFS](http://www.openafs.org/) - Distributed network file system with read-only replicas and multi-OS support.
 - [Perkeep](https://perkeep.org/) (née Camlistore) - A set of open source formats, protocols, and software for modeling, storing, searching, sharing and synchronizing data.