add safeline waf to web

Author: safe1ine

README.md

@@ -723,6 +723,7 @@ VPN software.
 - [HAProxy](https://www.haproxy.org/) - Very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications. ([Source Code](https://git.haproxy.org/?p=haproxy.git;a=tree)) `GPL-2.0` `C`
 - [Lighttpd](https://www.lighttpd.net/) - Secure, fast, compliant, and very flexible web server that has been optimized for high-performance environments. ([Source Code](https://git.lighttpd.net/lighttpd/lighttpd1.4)) `BSD-3-Clause` `C`
 - [Nginx](https://nginx.org/en/) - HTTP and reverse proxy server, mail proxy server, and generic TCP/UDP proxy server. ([Source Code](https://hg.nginx.org/nginx/file/tip)) `BSD-2-Clause` `C`
+- [SafeLine WAF](https://waf.chaitin.com/) - HTTP reverse proxy to protect your web app from attacks and exploits, make your web app secure default. ([Demo](https://demo.waf.chaitin.com:9443/)), ([Source Code](https://github.com/chaitin/SafeLine)) `GPL-3.0` `Go`
 - [Static Web Server](https://static-web-server.net/) - A cross-platform, high-performance, and asynchronous web server for static file serving. ([Source Code](https://github.com/static-web-server/static-web-server)) `Apache-2.0/MIT` `Rust/Docker`
 - [Traefik](https://traefik.io/) - HTTP reverse proxy and load balancer that makes deploying microservices easy. ([Source Code](https://github.com/traefik/traefik)) `MIT` `Go/Docker`
 - [Varnish](https://varnish-cache.org/) - Web application accelerator/caching HTTP reverse proxy. ([Source Code](https://github.com/varnishcache/varnish-cache)) `BSD-2-Clause` `C`