Fix README

Update a few awkward turns of phrase and fix indentation in the example.

README.md

@@ -5,36 +5,35 @@ cors
 [![Report Card](https://goreportcard.com/badge/connectrpc.com/cors)](https://goreportcard.com/report/connectrpc.com/cors)
 [![GoDoc](https://pkg.go.dev/badge/connectrpc.com/cors.svg)](https://pkg.go.dev/connectrpc.com/cors)
 
-`connectrpc.com/cors` provides convenience methods to make configuring
-Cross-Origin Resource Sharing (CORS) easier for
-[Connect](https://github.com/connectrpc/connect-go) servers. CORS is often
-required for the Connect and gRPC-Web protocols to work correctly in web
-browsers.
+`connectrpc.com/cors` simplifies Cross-Origin Resource Sharing (CORS) for
+[Connect](https://github.com/connectrpc/connect-go) servers. CORS is usually
+required for the Connect and gRPC-Web protocols to work correctly in
+web browsers.
 
 For background, more details, and best practices, see [Connect's CORS
 documentation](https://connectrpc.com/docs/cors).
 
 ## Example
 
-This package should work with any CORS package. As an example, we'll use it
-with [github.com/rs/cors](https://github.com/rs/cors).
+This package should work with any CORS implementation. As an example, we'll use
+it with [github.com/rs/cors](https://github.com/rs/cors).
 
 ```go
 import (
-	connectcors "connectrpc.com/cors"
-	"github.com/rs/cors"
+  connectcors "connectrpc.com/cors"
+  "github.com/rs/cors"
 )
 
 // withCORS adds CORS support to a Connect HTTP handler.
 func withCORS(connectHandler http.Handler) http.Handler {
-	c := cors.New(cors.Options{
-		AllowedOrigins: []string{"https://acme.com"}, // replace with your domain
-		AllowedMethods: connectcors.AllowedMethods(),
-		AllowedHeaders: connectcors.AllowedHeaders(),
-		ExposedHeaders: connectcors.ExposedHeaders(),
+  c := cors.New(cors.Options{
+    AllowedOrigins: []string{"https://acme.com"}, // replace with your domain
+    AllowedMethods: connectcors.AllowedMethods(),
+    AllowedHeaders: connectcors.AllowedHeaders(),
+    ExposedHeaders: connectcors.ExposedHeaders(),
     MaxAge: 7200, // 2 hours in seconds
-	})
-	return c.Handler(connectHandler)
+  })
+  return c.Handler(connectHandler)
 }
 ```