Add Hound to Search Engines (#3659)

README.md

@@ -1709,6 +1709,7 @@ A [search engine](https://en.wikipedia.org/wiki/Search_engine_(computing)) is an
 
 - [Fess](https://fess.codelibs.org/) - Fess is a very powerful and easily deployable Enterprise Search Server. ([Demo](https://search.n2sm.co.jp/), [Source Code](https://github.com/codelibs/fess)) `Apache-2.0` `Java/Docker`
 - [Gigablast](https://www.gigablast.com/) - Open-source search engine. ([Source Code](https://github.com/gigablast/open-source-search-engine)) `Apache-2.0` `C++`
+- [Hound](https://github.com/hound-search/hound) - Lightning fast code searching made easy. `MIT` `Go/Docker`
 - [Jina](https://github.com/jina-ai/jina/) - Cloud-native neural search framework for any kind of data. `Apache-2.0` `Python`
 - [librengine](https://github.com/liameno/librengine) - Private web search engine. `GPL-3.0` `C++`
 - [LibreX](https://github.com/hnhx/librex) `⚠` -  Framework and javascript free privacy respecting meta search engine. `AGPL-3.0` `PHP/Docker`