DOC-172 add note

Author: markzegarelli

src/_release_notes/2021-05-05-swift-kotlin.md

@@ -0,0 +1,23 @@
+---
+title: Analytics-Swift and Analytics-Kotlin Pilots
+description: |
+  Pilot releases of the Analytics-Swift and Analytics-Kotlin libraries are available. These releases are governed by Segment's [First-Access and Beta terms](https://segment.com/legal/first-access-beta-preview/), and should not be used in production scenarios.
+release_type: pilot
+product_area: sources
+business: false
+team: false
+doc_links:
+  - 
+    title: Analytics-Swift Repository
+    url: "https://github.com/segmentio/analytics-swift"
+  -
+    title: Analytics-Kotlin Repository
+    url: "https://github.com/segmentio/analytics-kotlin"
+# images:
+#   -
+#     path: /images/release-notes/ui-update-1.png
+#     desc: The navigation was redesigned to better reflect how users navigate through the product.
+#   - 
+#     path: /images/release-notes/ui-update-2.gif
+#     desc: A new workspace switcher provides an easier way to navigate between workspaces.
+---