Update CHANGELOG.md

Author: xrmx

CHANGELOG.md

@@ -3,7 +3,7 @@
 ## 2.2.0 (2024-06-27)
 
 - Rewrite type annotations ([#119](https://github.com/elastic/ecs-logging-python/pull/119))
-- Don't de-dot ecs.version ([#118](https://github.com/elastic/ecs-logging-python/pull/118))
+- Don't de-dot `ecs.version` ([#118](https://github.com/elastic/ecs-logging-python/pull/118))
 - Make it possible to use a different json serializer in StructlogFormatter ([#114](https://github.com/elastic/ecs-logging-python/pull/114))
 - Use fromtimestamp instead of deprecated utcfromtimestamp ([#105](https://github.com/elastic/ecs-logging-python/pull/105))
 - Remove unused imports and fix an undefined name ([#101](https://github.com/elastic/ecs-logging-python/pull/101))