Add VSCode quickstart docs

Author: colinmcneil

docs/content/tools/quickstart.md

@@ -1,12 +1,49 @@
 ---
-title: Quick Start
+title: Quick Start w/ VSCode
 weight: 1
 ---
 
 {{% steps %}}
 
-### Step 1
+### Download `.vsix` extension
 
-### second
+Download the `.vsix` extension from the [releases page](https://github.com/docker/labs-ai-tools-vscode/releases).
+
+### Install extension from `.vsix` file
+
+```sh
+code --install-extension <path-to-vsix-file>
+```
+
+or use the VSCode command palette `Extensions: Install from VSIX...`
+
+### Open a prompt
+With the extension installed, open a prompt in VSCode. Examples can be found in the [examples](https://github.com/docker/labs-ai-tools-for-devs/tree/main/prompts/examples) directory.
+
+### Configure OpenAI API Key, or use a different model.
+Default model is `gpt-4` provided by OpenAI. Use an the VSCode command palette `Docker AI: Set secret key` to set your API key. 
+
+**Changing the model:**
+Use the following keys in the prompt front-matter to change the model:
+
+Anthropic:
+```yml
+---
+url: https://api.anthropic.com
+model: claude-3-5-sonnet-20240620
+---
+```
+
+
+Ollama:
+```yml
+---
+model: llama3.2
+url: https://docker.host.internal:11434/v1
+---
+```
+
+### Run the prompt
+Use the VSCode command palette `Docker AI: Run this prompt` to run the prompt.
 
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