Add documentation for the upcoming Sentry integration

Author: emyller

docs/docs/integrations/error-tracking/sentry.md

@@ -0,0 +1,43 @@
+---
+title: Sentry Integration
+description: Integrate Flagsmith with Sentry
+sidebar_label: Sentry
+hide_title: true
+---
+
+![Sentry logo](/img/integrations/sentry-logo.svg)
+
+Integrate Flagsmith with Sentry to enable feature flag
+[Change Tracking](https://docs.sentry.io/product/issues/issue-details/feature-flags/#change-tracking).
+
+:::tip
+
+Along with _Change Tracking_, Sentry also offers
+[Evaluation Tracking](https://docs.sentry.io/product/issues/issue-details/feature-flags/#evaluation-tracking).
+Integrating with _Evaluation Tracking_ is currently only possible via our
+[OpenFeature provider](/clients/openfeature.md).
+
+:::
+
+## Integration Setup
+
+1. **In Sentry**
+   1. Visit the
+      [feature flags settings page](https://sentry.io/orgredirect/organizations/:orgslug/settings/feature-flags/change-tracking/)
+      in a new tab.
+   1. Click the "Add New Provider" button.
+   1. Select "Generic" in the dropdown that says "Select a provider".
+   1. Copy the provided Sentry webhook URL — we'll use that soon.
+   1. **Do not close this page!** We're not done yet.
+1. **In Flagsmith**
+   1. Go to Integrations > Sentry > Add Integration.
+   1. Choose the Environment from which Sentry will receive feature flag change events.
+   1. Paste the URL copied above into "Sentry webhook URL".
+   1. Copy the secret from "Webhook secret".
+   1. Click "Save". ✅
+1. **Back to Sentry**
+   1. Paste the secret copied above.
+   1. Click "Add Provider". ✅
+
+Flag change events will now be sent to Sentry, and should be displayed in issue details. For more information, visit
+Sentry's [Issue Details page documentation](https://docs.sentry.io/product/issues/issue-details/#feature-flags).

docs/docs/integrations/webhook.md

@@ -14,7 +14,7 @@ more. The process is as follows:
 
 ## Integration Setup
 
-1. Write an endpoint that accepts the [JSON schema](#webhook-json-schema) defined below
+1. Write an endpoint that accepts the [JSON schema](#webhook-json-schema) defined below.
 2. Add the integration in Flagsmith, providing your URL created in the step above.
 3. You can also provide a Secret which will be [hashed and included in the HTTP header](#webhook-signature). This will
    allow you to verify that the Webhook has come from Flagsmith.