Record new changes of Kraken Terms of Service

This version was recorded after extracting from snapshot mongo://contrib/open-terms-archive/snapshots/670c0c9477002a7b379295c3

Author: OTA-Bot

Kraken/Terms of Service.md

@@ -28,6 +28,9 @@
 * [Learn](https://www.kraken.com/learn)
 * [Support](https://support.kraken.com/hc/en-us)
 
+* [Sign in](https://www.kraken.com/sign-in)
+* [Sign up](https://www.kraken.com/sign-up)
+
 **Terms of Service**