[docs] Add tutorial for installing and using wallet extension

Closes: aptos-labs#809

developer-docs-site/docs/tutorials/building-wallet-extension.md

@@ -0,0 +1,67 @@
+---
+title: "Wallet Extension"
+slug: "building-wallet-extension"
+sidebar_position: 12
+---
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+
+# Building the Wallet Extension
+
+This tutorial goes through how to build the wallet extension and how to use it with your dApp 
+1. Install the wallet on Chrome
+2. Wallet functionality
+3. dApp Integration
+
+The code for the wallet can be found on our [github](https://github.com/aptos-labs/aptos-core/tree/main/ecosystem/web-wallet).
+
+## Step 1) Install the wallet on Chrome
+
+1. Download the latest [wallet release](https://github.com/aptos-labs/aptos-core/releases/) and unzip
+2. Open a Chrome window and navigate to [chrome://extensions](chrome://extensions)
+3. Enable **Developer mode** in the top right of the extension page
+4. Hit **Load unpacked** and point it to the folder you just downloaded
+
+Now you should see the Aptos wallet in your chrome extensions!
+
+*Hint: Open your downloaded extensions by clicking the puzzle piece icon in your Chrome toolbar*
+
+## Step 2) Wallet functionality
+The wallet has implemented some of the basics of interacting with Aptos
+- Create a new account
+- Fund your account with test coins
+- Send coins to another address
+- Link to your account resources on Explorer
+
+## Step 3) dApp Integration
+Currently we have two requests a dApp webpage can make to the wallet:
+- `account()`: gets the address of the account signed into the wallet
+- `signTransaction(transaction)`: signs the given transaction and returns the signed transaction to be submitted to chain
+
+### Usage
+*Note: you will want to use our [typescript sdk](https://github.com/aptos-labs/aptos-core/tree/main/ecosystem/typescript/sdk) - `npm install aptos`*
+
+```typescript
+import { AptosAccount, AptosClient } from 'aptos'
+
+// Gets the address of the account signed into the wallet
+const accountAddress = await (window as any).aptos.account()
+
+// Create a transaction
+const client = new AptosClient('https://fullnode.devnet.aptoslabs.com')
+const receiverAddress = '40b389daf74a98401f430ce8e73254dbffc5ce036ea32c33c15f14b858be3daf'
+const amount = '1337'
+const payload: Types.TransactionPayload = {
+    type: 'script_function_payload',
+    function: '0x1::TestCoin::transfer',
+    type_arguments: [],
+    arguments: [receiverAddress, amount]
+}
+const transaction = await client.generateTransaction(accountAddress, payload)
+
+// Send transaction to the extension to be signed
+const response = await (window as any).aptos.signTransaction(transaction)
+
+// Submit signed transaction to chain
+await client.submitTransaction(new AptosAccount(), response)
+```

developer-docs-site/docs/tutorials/getting-started.md

@@ -26,6 +26,7 @@ source ~/.cargo/env
 * [Your first NFT](/tutorials/your-first-nft)
 * [Run a local testnet](/tutorials/run-a-local-testnet)
 * [Run a FullNode](/tutorials/run-a-fullnode)
+* [Wallet Extension With dApp Integration](/tutorials/building-wallet-extension)
 
 ## Start Developing Move Modules