Add Gneto.

README.md

@@ -172,6 +172,7 @@ Repo mirrors:
 - [geminid](https://github.com/jovoro/geminid/) (C) - Gemini Server in C.
 - [geminid](https://www.upyum.com/cgit.cgi/geminid) (Scheme) - Gemini Server in CHICKEN Scheme.
 - [gemini-php](https://opensource.glasgow.social/gemini-php) (PHP) - simple Gemini server in PHP.
+- [Gneto](https://github.com/pgorman/gneto) (Go) - Gemini over HTTP proxy, with support for client certificates and CSS customization.
 - [JAGS-php](https://github.com/codeandcreate/JAGS-PHP) (PHP) - fork of gemini-php with support of dynamic pages.
 - [jsonresume-gemini](https://github.com/michaelcaplan/jsonresume-gemini) (PHP) -  single purpose server implementation of the Gemini protocol to serve up your JSON Resume.
 - [geminim](https://github.com/ardek66/geminim) (Nim) - an async lightweight Gemini server made in Nim.