add CHANGELOG

CHANGELOG.md

@@ -5,6 +5,7 @@
 **Internal**:
 
 - Remove unused item types. ([#1211](https://github.com/getsentry/relay/pull/1211))
+- Account root span in span op breakdown. ([#1213](https://github.com/getsentry/relay/pull/1213))
 
 ## 22.3.0
 
@@ -58,7 +59,7 @@
 **Features**:
 
 - Extract measurement ratings, port from frontend. ([#1130](https://github.com/getsentry/relay/pull/1130))
-- External Relays perform dynamic sampling and emit outcomes as client reports. This feature is now enabled *by default*. ([#1119](https://github.com/getsentry/relay/pull/1119))
+- External Relays perform dynamic sampling and emit outcomes as client reports. This feature is now enabled _by default_. ([#1119](https://github.com/getsentry/relay/pull/1119))
 - Metrics extraction config, custom tags. ([#1141](https://github.com/getsentry/relay/pull/1141))
 - Update the user agent parser (uap-core Feb 2020 to Nov 2021). This allows Relay and Sentry to infer more recent browsers, operating systems, and devices in events containing a user agent header. ([#1143](https://github.com/getsentry/relay/pull/1143), [#1145](https://github.com/getsentry/relay/pull/1145))
 - Improvements to Unity OS context parsing ([#1150](https://github.com/getsentry/relay/pull/1150))