docs: update autonat v2 readme (#3198)

Fixes typos and updates example

Author: achingbrain

packages/protocol-autonat-v2/README.md

@@ -1,13 +1,11 @@
-# @libp2p/autonat
-
 # @libp2p/autonat-v2
 
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-> Implementation of the Autonat Protocol v2
+> Implementation of the AutoNAT Protocol v2
 
 # About
 
@@ -26,31 +24,22 @@ repo and examine the changes made.
 
 -->
 
-The AutoNAT service uses the [AutoNAT protocol](https://docs.libp2p.io/concepts/nat/autonat/).
-The service confirms addresses are dialable by remote peers, and updates the list it advertises.
-
-The service dials randomly selected peers with a request to verify it's external addresses.
-The request includes a list of public multiaddrs (addressManager.getObservedAddrs()).
-The remote peers dial that list and respond with the results.
-
-The AutoNAT service uses those responses to either:
-
-- addressManager.confirmObservedAddr(addr)
-- addressManager.removeObservedAddr(addr)
+The AutoNATv2 service implements the [AutoNAT v2 protocol](https://github.com/libp2p/specs/blob/master/autonat/autonat-v2.md)
+to confirm whether addresses the node is listening on are dialable by remote
+peers.
 
-The result list of candidates and confirmed addresses can be found
-at addressManager.getObservedAddrs()
+It does not implement NAT hole punching.
 
 ## Example
 
 ```typescript
 import { createLibp2p } from 'libp2p'
-import { autoNAT } from '@libp2p/autonat'
+import { autoNATv2 } from '@libp2p/autonat-v2'
 
 const node = await createLibp2p({
   // ...other options
   services: {
-    autoNAT: autoNAT()
+    autoNAT: autoNATv2()
   }
 })
 ```

packages/protocol-autonat-v2/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@libp2p/autonat-v2",
   "version": "0.0.0",
-  "description": "Implementation of the Autonat Protocol v2",
+  "description": "Implementation of the AutoNAT Protocol v2",
   "license": "Apache-2.0 OR MIT",
   "homepage": "https://github.com/libp2p/js-libp2p/tree/main/packages/protocol-autonat-v2#readme",
   "repository": {