Merge pull request #609 from seladb/master

Adding PickleDB

README.md

@@ -791,6 +791,8 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
     * [zitsen/unqlite.rs](https://github.com/zitsen/unqlite.rs) — UnQLite bindings [<img src="https://api.travis-ci.org/zitsen/unqlite.rs.svg?branch=master">](https://travis-ci.org/zitsen/unqlite.rs)
   * [ZooKeeper](https://zookeeper.apache.org/)
     * [bonifaido/rust-zookeeper](https://github.com/bonifaido/rust-zookeeper) [[zookeeper](https://crates.io/crates/zookeeper)] — A client library for Apache ZooKeeper. [<img src="https://api.travis-ci.org/bonifaido/rust-zookeeper.svg?branch=master">](https://travis-ci.org/bonifaido/rust-zookeeper)
+  * [PickleDB](https://pythonhosted.org/pickleDB/)
+    * [seladb/pickledb-rs](https://github.com/seladb/pickledb-rs) - a lightweight and simple key-value store, heavily inspired by Python's PickleDB. [<img src="https://api.travis-ci.org/seladb/pickledb-rs.svg?branch=master">](https://travis-ci.org/seladb/pickledb-rs)
 * SQL [[sql](https://crates.io/keywords/sql)]
   * Microsoft SQL
     * [steffengy/tiberius](https://github.com/steffengy/tiberius) — [<img src="https://api.travis-ci.org/steffengy/tiberius.svg?branch=master">](https://travis-ci.org/steffengy/tiberius)