Update website/pages/docs/authorization-strategies.mdx

Author: benjie

website/pages/docs/authorization-strategies.mdx

@@ -11,7 +11,7 @@ servers using GraphQL.js. It assumes you're authenticating requests and passing
 session object into the `context`.
 
 <Callout type="info" emoji="ℹ️">
-  In production system,s authorization should be handled in your business logic layer, not your
+  In production systems authorization should be handled in your business logic layer, not your
   GraphQL resolvers. GraphQL is intended to be a thin execution layer that calls into your application's
   domain logic, which enforces access control.
 </Callout>