Add pogreb to Database section
@@ -432,6 +432,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
* [moss](https://github.com/couchbase/moss) - Moss is a simple LSM key-value storage engine written in 100% Go.
* [nutsdb](https://github.com/xujiajun/nutsdb) - Nutsdb is a simple, fast, embeddable, persistent key/value store written in pure Go. It supports fully serializable transactions and many data structures such as list, set, sorted set.
* [piladb](https://github.com/fern4lvarez/piladb) - Lightweight RESTful database engine based on stack data structures.
+* [pogreb](https://github.com/akrylysov/pogreb) - Embedded key-value store for read-heavy workloads.
* [prometheus](https://github.com/prometheus/prometheus) - Monitoring system and time series database.
* [pudge](https://github.com/recoilme/pudge) - Fast and simple key/value store written using Go's standard library.
* [rqlite](https://github.com/rqlite/rqlite) - The lightweight, distributed, relational database built on SQLite.
