Announce Sui Wallet Browser Extension in Learn See what's new section (…

…MystenLabs#3024)

* Announce Sui Wallet Browser Extension in Learn See what's new section

* Update index.md

* remove fullnode

* Remove Mac profiling from See what's new

doc/src/learn/index.md

@@ -16,6 +16,7 @@ For a deep dive into Sui technology, see the [Sui Smart Contracts Platform](http
 
 Find the latest updates to these contents in this section:
 
+* Install the [Sui Wallet Browser Extension](../explore/wallet-browser.md) to create NFTs, transfer coins, and carry out common transactions in a Chrome tab.
 * [Sui Move is feature complete](https://sui.io/resources-move/why-we-created-sui-move/) and ready for you to write safe and efficient smart contracts. See https://examples.sui.io/ to learn Sui Move by example.
 * Sui [version 0.6.0](https://github.com/MystenLabs/sui/releases/tag/devnet-0.6.0-rc) released to DevNet. See [RELEASES](https://github.com/MystenLabs/sui/blob/main/RELEASES.md) for details on other releases.
 * If your application is written in JavaScript or TypeScript, follow the [TypeScript SDK documentation](https://github.com/MystenLabs/sui/tree/main/sdk/typescript) and [reference files](https://www.npmjs.com/package/@mysten/sui.js).
@@ -24,7 +25,6 @@ Find the latest updates to these contents in this section:
 * The former `wallet` binary has been replaced with the [Sui CLI client](../build/cli-client.md) and combined with related functions.
 * [JSON-RPC PubSub](../build/pubsub.md) is supported by Sui [fullnode](../build/fullnode.md) to publish / subscribe using notifications via websocket.
 * [Docker Compose](../build/fullnode.md#using-docker-compose) enables simple creation of Sui Fullnodes using [Docker](https://github.com/MystenLabs/sui/tree/main/docker/fullnode#readme).
-* [Run a fullnode](../build/fullnode.md) in Sui to have your own local copy of full blockchain state, contribute to Sui, and qualify to be a potential validator.
 
 For a complete view of all changes in the Sui `devnet` branch, see:
 https://github.com/MystenLabs/sui/commits/devnet