Merge pull request #276 from x4m/patch-2

Update WAL-G info

README.md

@@ -51,7 +51,7 @@
 * [pg\_back](https://github.com/orgrim/pg_back/) - pg\_back is a simple backup script
 * [pghoard](https://github.com/aiven/pghoard) - Backup and restore tool for cloud object stores (AWS S3, Azure, Google Cloud, OpenStack Swift).
 * [wal-e](https://github.com/wal-e/wal-e) - Simple Continuous Archiving for PostgreSQL to S3, Azure, or Swift by Heroku.
-* [wal-g](https://github.com/wal-g/wal-g) - The successor of WAL-E rewritten in Go. Currently supports S3 only.
+* [wal-g](https://github.com/wal-g/wal-g) - The successor of WAL-E rewritten in Go. Currently supports cloud object storage services by AWS (S3), Google Cloud (GCS), Azure, as well as OpenStack Swift, MinIO, and file system storages. Supports block-level incremental backups, offloading backup tasks to a standby server, provides parallelization and throttling options. In addition to Postgres, WAL-G can be used for MySQL and MongoDB databases.
 * [pitrery](https://dalibo.github.io/pitrery/) - pitrery is a set of Bash scripts to manage Point In Time Recovery (PITR) backups for PostgreSQL.
 
 ### GUI