Fix SCTP changelog

Author: lookback-hugotunius

sctp/CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+## v0.6.1
+
 * Increased min verison of `log` dependency to `0.4.16`. [#250 Fix log at ^0.4.16 to make tests compile](https://github.com/webrtc-rs/webrtc/pull/250) by [@k0nserv](https://github.com/k0nserv).
 * [#245 Fix incorrect chunk type Display for CWR](https://github.com/webrtc-rs/webrtc/pull/245) by [@k0nserv](https://github.com/k0nserv).