Add BoltDB Viewer to projects section in README (#255)

Co-authored-by: zc310.tech <support@zc310.tech>

README.md

@@ -908,6 +908,7 @@ Below is a list of public, open source projects that use Bolt:
 * [BoltStore](https://github.com/yosssi/boltstore) - Session store using Bolt.
 * [Boltdb Boilerplate](https://github.com/bobintornado/boltdb-boilerplate) - Boilerplate wrapper around bolt aiming to make simple calls one-liners.
 * [BoltDbWeb](https://github.com/evnix/boltdbweb) - A web based GUI for BoltDB files.
+* [BoltDB Viewer](https://github.com/zc310/rich_boltdb) - A BoltDB Viewer Can run on Windows、Linux、Android system.
 * [bleve](http://www.blevesearch.com/) - A pure Go search engine similar to ElasticSearch that uses Bolt as the default storage backend.
 * [btcwallet](https://github.com/btcsuite/btcwallet) - A bitcoin wallet.
 * [buckets](https://github.com/joyrexus/buckets) - a bolt wrapper streamlining