add lotusdb
add lotusdb in database
@@ -556,6 +556,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
* [Kivik](https://github.com/go-kivik/kivik) - Kivik provides a common Go and GopherJS client library for CouchDB, PouchDB, and similar databases.
* [ledisdb](https://github.com/siddontang/ledisdb) - Ledisdb is a high performance NoSQL like Redis based on LevelDB.
* [levigo](https://github.com/jmhodges/levigo) - Levigo is a Go wrapper for LevelDB.
+* [lotusdb](https://github.com/flower-corp/lotusdb) - Fast k/v database compatible with lsm and b+tree.
* [Milvus](https://github.com/milvus-io/milvus) - Milvus is a vector database for embedding management, analytics and search.
* [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.
