Update README.md (brianc#2671)

Change `name` to `now` for time column

Author: weidenhaus

packages/pg-pool/README.md

@@ -136,7 +136,7 @@ because its so common to just run a query and return the client to the pool afte
 var pool = new Pool()
 var time = await pool.query('SELECT NOW()')
 var name = await pool.query('select $1::text as name', ['brianc'])
-console.log(name.rows[0].name, 'says hello at', time.rows[0].name)
+console.log(name.rows[0].name, 'says hello at', time.rows[0].now)
 ```
 
 you can also use a callback here if you'd like: