(ask fern) Update Slack install instructions (#1187)

Author: devalog

fern/products/ask-fern/pages/features/slack-app.mdx

@@ -9,36 +9,43 @@ Fern stores all questions and answers from Slack interactions for [analytics pur
 
 ## Setup
 
-Install the Ask Fern app and add the bot to customer channels. 
+Install the Ask Fern app in your workspace and add the bot to customer channels. 
 
-### Install for your organization
+<Note>
+  To install Ask Fern in your organization's Slack workspace, you must be a Slack admin.
+</Note>
 
-To install Ask Fern in your organization's Slack workspace, you must be a Slack admin. Follow these steps:
+<Steps>
+<Step title="Get your unique install link">
 
-1. In your Fern dashboard, click the **Install to Slack** button. You'll be redirected to Slack to authorize the app 
-1. Select the workspace where you want to add Ask Fern and click **Allow**
+Use the [API explorer](/ask-fern/api-reference/slack/get-slack-install-link) to get a unique Slack installation link for your organization. Provide:
+- Your Fern token
+- Your domain without protocol or path (e.g., `website.com`, not `https://website.com/docs`)
+
+You can alternatively use this cURL request:
+```bash
+curl -G https://fai.buildwithfern.com/slack/get-install \
+     -H "Authorization: Bearer <YOUR_FERN_TOKEN>" \
+     --data-urlencode domain=<YOUR_DOMAIN>
+```
+
+Follow the URL returned in the `install_url` response field.
+
+</Step>
+<Step title="Add to your workspace">
+You'll be redirected to Slack to authorize the Ask Fern app. Select the workspace where you want to add Ask Fern and click **Allow**.
 
 <Frame>
   <img src="/products/ask-fern/pages/assets/allow-slack.png" alt="Allow Ask Fern for Slack workspace" />
 </Frame>
 
-### Enable for customer workspaces
-
-To give customers access to the Ask Fern bot in their own Slack workspaces:
-
-1. Generate a customer installation link by making a request to:
-   ```
-   https://fai.buildwithfern.com/slack/get-install?domain={your-domain}
-   ``` 
-   This returns a unique URL that your customers can use to install Ask Fern to their own Slack workspace.
+</Step>
+<Step title="Add to customer channels">
 
-    <Frame>
-    <img src="/products//ask-fern/pages/assets/request-slack.png" alt="Respond all setting in Slack" />
-    </Frame>
-1. Forward this link to your customer so they can install the Ask Fern app to their workspace.
-1. Once the customer has installed the Ask Fern app, you must add the bot to your customer Slack channel to give it access.
+Once you've installed it in your workspace, add the bot to customer Slack channels to give it access. Customers will see that `@Ask Fern was added to the channel` and can start asking questions immediately.
 
-Once added, customers will see that `@Ask Fern was added to the channel`. They can start asking questions immediately.
+</Step>
+</Steps>
 
 ## Configuration