adding docs for statsig destination

Author: muhammadatifjav

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

@@ -0,0 +1,75 @@
+---
+title: Statsig Destination
+---
+
+[Statsig](https://www.statsig.com/?utm_source=segmentio&utm_medium=docs&utm_campaign=partners) helps companies safely A/B test features in production before rolling them out, avoiding product debates and costly mistakes when shipping out new features. Statsig automates the grunt work so that A/B tests are always running automatically and you always know how your features are performing.
+
+This destination is maintained by Statsig. For any issues with the destination, [contact the Statsig Support team](mailto:[email protected]).
+
+## Getting Started
+
+{% include content/connection-modes.md %}
+
+1. From the Destinations catalog page in the Segment App, click **Add Destination**.
+2. Search for “Statsig” in the Destinations Catalog, and select the “Statsig” destination.
+3. Choose which Source(s) should send data to the “Statsig” destination.
+4. Go to the [Statsig dashboard](https://console.statsig.com/api_keys), find and copy the Statsig "Server Secret Key”.
+5. Enter the Statsig “Server Secret Key” in the “Statsig” destination settings in Segment.
+
+## Supported methods
+
+Statsig supports the following methods, as specified in the [Segment Spec](/docs/connections/spec).
+
+### Page
+
+If you aren't familiar with the Segment Spec, take a look at the [Page method documentation](https://segment.com/docs/connections/spec/page/) to learn about what it does. An example call would look like:
+
+```js
+analytics.page("Home")
+```
+
+Segment sends Page calls to Statsig as:
+
+```js
+{
+  "event": "segment_page:Home"
+}
+```
+
+These events will be automatically included in any experiments running on Statsig and will show up in all Metrics data.
+
+### Screen
+
+If you aren't familiar with the Segment Spec, take a look at the [Screen method documentation](https://segment.com/docs/connections/spec/screen/) to learn about what it does. An example call would look like:
+
+```obj-c
+[[SEGAnalytics sharedAnalytics] screen:@"Home"];
+```
+
+Segment sends Screen calls to Statsig as:
+
+```js
+{
+  "event": "segment_screen:Home"
+}
+```
+
+These events will be automatically included in any experiments running on Statsig and will show up in all Metrics data.
+
+### Track
+
+If you aren't familiar with the Segment Spec, take a look at the [Track method documentation](https://segment.com/docs/connections/spec/track/) to learn about what it does. An example call would look like:
+
+```js
+analytics.track('Login Button Clicked')
+```
+
+Segment sends Track calls to Statsig as:
+
+```js
+{
+  "event": "segment_track:Login Button Clicked"
+}
+```
+
+These events will be automatically included in any experiments running on Statsig and will show up in all Metrics data.