Merge pull request #362 from fawazahmed0/patch-1

Fix broken example

content/guides/getting-started/javascript.md

@@ -187,7 +187,7 @@ We can configure and use [`pingService`](https://libp2p.github.io/js-libp2p/modu
 We can have our application accepting a peer multiaddress via command line argument and try to ping it. To do so, we'll need to add a couple things. First, require the `process` module so that we can get the command line arguments. Then we'll need to parse the multiaddress from the command line and try to ping it:
 
 ```sh
-npm install multiaddr
+npm install multiaddr @libp2p/ping
 ```
 
 ```javascript
@@ -197,7 +197,7 @@ import { tcp } from '@libp2p/tcp'
 import { noise } from '@chainsafe/libp2p-noise'
 import { mplex } from '@libp2p/mplex'
 import { multiaddr } from 'multiaddr'
-import { pingService } from 'libp2p/ping'
+import { ping } from '@libp2p/ping'
 
 const node = await createLibp2p({
   addresses: {
@@ -208,7 +208,7 @@ const node = await createLibp2p({
   connectionEncryption: [noise()],
   streamMuxers: [mplex()],
   services: {
-    ping: pingService({
+    ping: ping({
       protocolPrefix: 'ipfs', // default
     }),
   },