Update src/connections/destinations/catalog/posthog/index.md

Co-authored-by: LRubin <[email protected]>

Author: pauljaeinyoo

src/connections/destinations/catalog/posthog/index.md

@@ -13,7 +13,7 @@ This destination is maintained by PostHog. For any issues with the destination,
 1. From the Destinations catalog page in the Segment App, click **Add Destination**.
 2. Search for "PostHog" in the Destinations Catalog, and select the PostHog destination.
 3. Choose which Source should send data to the PostHog destination.
-4. Go to your PostHog setup page, find and copy the “API key”.
+4. Go to your [PostHog set up page](https://app.posthog.com/setup), and find and copy the **API key**.
     - [Saas Account Setup Page](https://app.posthog.com/setup)
 6. Enter the “API Key” in the “PostHog” destination settings in Segment.