Add optional require statement for client

samples/simple.js

@@ -1,3 +1,4 @@
+// const client = require('../src/client')
 const client = require("eventstore-node")
 const uuid = require("uuid")
 

samples/store-event.js

@@ -1,3 +1,4 @@
+// const client = require('../src/client')
 const client = require("eventstore-node")
 const uuid = require("uuid")
 

samples/subscribe-all-events.js

@@ -1,4 +1,6 @@
 // Subscribe to all new events on the $all stream. Filter out any which aren"t about "user" aggregates.
+
+// const client = require('../src/client')
 const client = require("eventstore-node")
 
 const resolveLinkTos = false

samples/subscribe-catchup-all-events.js

@@ -1,5 +1,7 @@
 // Subscribe to all events on the $all stream. Catch up from the beginning, then listen for any new events as they occur.
 // This could be used for subscribers which populate read models.
+
+// const client = require('../src/client')
 const client = require("eventstore-node")
 
 const eventAppeared => (stream, event) =>