Add part 2 quickstart guide: create an app (#896)

* Add backend quickstart guide

* Feedback and adjustments

* Adjustments for clarity

* Filename changes etc.

* Fix Infura docs link

* Amend paths

* Hide part 2, other minor changes

* Fix Cookbook images

* Add part 2

* Fix deploy.mdx anchors

* Some fixes

* Expand intro and add estimated time

* Adjust quickstart sidebar link

* Update titles and descriptions

* Add Vercel deployment details

* Adjust description

* Adjust wording

* Address suggestions

docs/get-started/build/quickstart/deploy.mdx

@@ -1,5 +1,5 @@
 ---
-title: Contract deployment
+title: Deploy your contract
 description: Create a new project and deploy and verify your contracts using Foundry
 sidebar_position: 1
 pagination_next: get-started/build/quickstart/app
@@ -11,8 +11,8 @@ Building apps on Linea needn't be complicated. In this guide, we'll walk you thr
 [Foundry](https://book.getfoundry.sh/) to create a new project from scratch. 
 
 This involves:
-1. [Creating a project](#create-a-project)
-2. [Deploying](#deploy-a-contract) and then [verifying](#verify-a-contract) your contract.
+1. [Creating a project](#create-your-project)
+2. [Deploying](#deploy-your-contract) and then [verifying](#verify-your-contract) your contract.
 
 > _Estimated time to complete: ~20 minutes._
 
@@ -197,7 +197,9 @@ Transaction hash: 0x ... // The deployment transaction itself
 You can copy each of these addresses and head to the [block explorer](https://sepolia.lineascan.build/) 
 to see the deployed contract.
 
-Make sure to copy the `Deployed to` address, as you'll need it to verify the contract.
+Make sure to copy the `Deployed to` address, as you'll need it to verify the contract. It'll also
+be useful in part two of this quickstart, where we'll need it to interact with the contract in our
+app.
 
 ## Verify your contract
 
@@ -251,3 +253,19 @@ forge create --rpc-url https://rpc.sepolia.linea.build --account test-account --
 
 Now you've successfully deployed and verified your contract! It's recorded on the blockchain and
 ready to receive calls from your app. 
+
+## Next steps 
+
+Proceed to [part two](./app.mdx) of this quickstart, where we'll build a simple web app for 
+interacting with the counter contract.
+
+## Help and resources
+
+If you get stuck at any point in this guide, head to our [Discord](https://discord.gg/linea) and 
+visit the `#developer-chat` channel.
+
+- [Foundry documentation](https://book.getfoundry.sh/)
+  - [Foundry CLI](https://book.getfoundry.sh/forge/)
+  - [Foundry Cast](https://book.getfoundry.sh/cast/)
+- [Linea Sepolia block explorer](https://sepolia.lineascan.build/)
+- [Node providers](../../tooling/node-providers/index.mdx)

docs/get-started/tooling/contracts-templates/cookbook.mdx

@@ -14,7 +14,7 @@ explore protocols on Linea, or search for specific smart contracts in the search
 <div class="center-container">
   <div class="img-large">
     <img
-      src="/img/developers/quickstart/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_1.png"
+      src="/img/get_started/how_to/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_1.png"
       alt="Cookbook Search"
     />
   </div>
@@ -29,7 +29,7 @@ questions about Linea, Solidity, or your smart contract.
 <div class="center-container">
   <div class="img-large">
     <img
-      src="/img/developers/quickstart/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_2.png"
+      src="/img/get_started/how_to/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_2.png"
       alt="Cookbook Analyze Code Snippet"
     />
   </div>
@@ -43,7 +43,7 @@ any smart contract address into the Cookbook search bar.
 <div class="center-container">
   <div class="img-large">
     <img
-      src="/img/developers/quickstart/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_3.png"
+      src="/img/get_started/how_to/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_3.png"
       alt="Cookbook Import Contract"
     />
   </div>
@@ -59,7 +59,7 @@ Remix Homepage.
 <div class="center-container">
   <div class="img-medium">
       <img
-      src="/img/developers/quickstart/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_8.png"
+      src="/img/get_started/how_to/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_8.png"
       alt="Cookbook Remix Featured Plugin"
     />
   </div>
@@ -70,7 +70,7 @@ Alternatively, search Cookbook and select "Activate" in the Remix Plugin Manager
 <div class="center-container">
   <div class="img-small">
       <img
-      src="/img/developers/quickstart/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_9.png"
+      src="/img/get_started/how_to/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_9.png"
       alt="Cookbook Remix Add Plugin"
     />
   </div>
@@ -79,13 +79,13 @@ Alternatively, search Cookbook and select "Activate" in the Remix Plugin Manager
 Search for any protocol or smart contract and click the search result to import the smart contract 
 code into Remix.
 
-Cookbook's AI solidity co-pilot, ChefGPT, is available within the Remix plugin to answer questions 
+Cookbook's AI Solidity co-pilot, ChefGPT, is available within the Remix plugin to answer questions 
 about Linea, Solidity, or the smart contract you're working with.
 
 <div class="center-container">
   <div class="img-small">
       <img
-      src="/img/developers/quickstart/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_10.png"
+      src="/img/get_started/how_to/deploy_smart_contract/cookbook/Linea_deploy_smart_contract_Cookbook_10.png"
       alt="Cookbook Remix Search"
     />
   </div>

sidebars.js

@@ -15,6 +15,7 @@ const sidebars = {
         {
           type: "category",
           label: "Quickstart",
+          collapsible: false,
           link: {
             type: "doc",
             id: "get-started/build/quickstart/deploy",