Update PostHog Destination docs

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

@@ -3,23 +3,23 @@ title: PostHog Destination
 rewrite: true
 id: 5ece242d61055a0b1bb2e103
 ---
-[PostHog](https://posthog.com/?utm_source=segmentio&utm_medium=docs&utm_campaign=partners){:target="_blank"} is a self-hosted, open-source analytics product. Get the same powerful features as other product analytics software but keep full control over your data.
+[PostHog](https://posthog.com/?utm_source=segmentio&utm_medium=docs&utm_campaign=partners){:target="_blank"} is an open-source suite of product and data tools including product analytics, session replays, feature flags, A/B testing, surveys, and more.
 
-This destination is maintained by PostHog. For any issues with the destination, check out the [PostHog users slack](https://posthog.com/slack){:target="_blank"} or [contact the PostHog Support team](mailto:[email protected]).
-
-## Getting Started
+You can find out more about the destination in their [Segment documentation](https://posthog.com/docs/libraries/segment){:target="_blank"}.
 
+This destination is maintained by PostHog. For any issues with the destination, ask a question in the [PostHog community](https://posthog.com/questions){:target="_blank"} or [contact the PostHog support team in-app](https://us.posthog.com/#panel=support).
 
+## Getting Started
 
 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 set up page](https://app.posthog.com/setup){:target="_blank"}, and copy the **API key**.
-5. Enter the PostHog API Key that you copied in the PostHog destination settings in Segment.
-6. Enter your PostHog instance URL as the address to your instance **without any trailing slash**, for example:
-  - `https://app.posthog.com` if you use PostHog Cloud US
-  - `https://eu.posthog.com` if you use PostHog Cloud EU
-  - `https://posthog-example.herokuapp.com` if you self-host on Heroku
+4. Go to your [PostHog project settings](https://us.posthog.com/settings/project#variables){:target="_blank"}, and copy the **project API key**.
+5. Enter the project API Key that you copied in the PostHog destination settings in Segment.
+6. Enter your PostHog instance address **without any trailing slash**, for example:
+  - `https://us.i.posthog.com` if you use PostHog US Cloud
+  - `https://eu.i.posthog.com` if you use PostHog EU Cloud
+  - Your self-hosted URL if you self-host
 
 ## Page
 
@@ -53,7 +53,7 @@ analytics.identify('userId123', {
 });
 ```
 
-Segment sends Identify calls to PostHog as an `identify` event. Data from Identify calls appears in PostHog under the **People** tab.
+Segment sends Identify calls to PostHog as an `$identify` event. Data from Identify calls appears in PostHog under the **People** tab.
 
 
 ## Track
@@ -64,7 +64,7 @@ If you aren't familiar with the Segment Spec, take a look at the [Track method d
 analytics.track('Login Button Clicked')
 ```
 
-Segment sends Track calls to PostHog as a `track` event.
+Segment sends Track calls to PostHog using the event name you provide.
 
 ## Alias
 
@@ -74,4 +74,24 @@ If you aren't familiar with the Segment Spec, take a look at the [Alias method d
 analytics.alias('507f191e81')
 ```
 
-Segment sends Alias calls to PostHog as an `alias` event.
+Segment sends Alias calls to PostHog as an `$create_alias` event.
+
+## Group
+
+If you aren't familiar with the Segment Spec, take a look at the [Group method documentation](/docs/connections/spec/group/) to learn about what it does. An example call would look like:
+
+```js
+analytics.group("0e8c78ea9d97a7b8185e8632", {
+  name: "Initech",
+  industry: "Technology",
+  employees: 329,
+});
+```
+
+Segment sends Group calls to PostHog as an `$groupidentify` event. This creates or updates a group with the group type `segment_group` in PostHog. To create or update a group with a different group type, call `track` with a `$group` property.
+
+```js
+analytics.track('user_signed_up', {
+    $groups: { company: 'Initech' }
+})
+```