Merge pull request #3 from sis0k0/atlas-existing-account

Add existing Atlas account instructions

docs/20-mongodb-atlas/1-create-account.mdx

@@ -5,7 +5,29 @@ import Screenshot from "@site/src/components/Screenshot";
 
 In this lab, you will learn how to use MongoDB Atlas as a knowledge base as well as a memory provider for AI agents.
 
-To use MongoDB Atlas, you will need to start by creating an account. **If you already have an account, you can skip the following steps and move on to the next section.**
+To use MongoDB Atlas, you will need to start by creating an account.
+
+<details>
+  <summary>🦸‍♀️ If you already have an Atlas account, you can use it by creating a new project</summary>
+
+    First, log into <Link to="https://account.mongodb.com/">MongoDB Atlas</Link> using your existing credentials.
+
+    <Screenshot url="https://account.mongodb.com" src={"img/screenshots/20-mongodb-atlas/2-create-account/3-login.png"} alt="Login form" />
+
+    ## Create a new Atlas project
+
+    Once you're in Atlas, open the dropdown on the left-top corner of the page and select **New Project**.
+
+    <Screenshot url="https://cloud.mongodb.com" src={"img/screenshots/20-mongodb-atlas/2-create-account/4-new-project.png"} alt="Create new project" />
+
+    Enter a name for your project and click **Next**.
+
+    <Screenshot url="https://cloud.mongodb.com" src={"img/screenshots/20-mongodb-atlas/2-create-account/5-new-project-name.png"} alt="Create new project" />
+
+    On the next page, you can leave the current user as the project owner, and click **Create Project**.
+
+    Once the project is ready, continue the workshop <a href="./create-cluster">**deploying a Database Cluster**</a>
+</details>
 
 ## Sign up for MongoDB Atlas