Update README.md

Author: lmammino

README.md

@@ -12,7 +12,7 @@ received with a given prefix (or none) to an upstream. All Fastify hooks are sti
 [`fastify-reply-from`](http://npm.im/fastify-reply-from), which enables
 you for single route proxying.
 
-This plugin can be used in a variety of circumstances, for example if you have to proxy an internal domain to an external domain (useful to avoid CORS problems) or to implement your own API gateway in your microservices architecture.
+This plugin can be used in a variety of circumstances, for example if you have to proxy an internal domain to an external domain (useful to avoid CORS problems) or to implement your own API gateway for a microservices architecture.
 
 ## Install