changelog: cut [email protected] (#260)

Author: coury-clark

charts/sourcegraph/CHANGELOG.md

@@ -8,6 +8,11 @@ Use `**BREAKING**:` to denote a breaking change
 
 ## Unreleased
 
+
+## 5.0.0
+
+- Sourcegraph 5.0.0 is now available
+
 - Change CACHE_DIR env var to SYMBOLS_CACHE_DIR in symbols template [#258](https://github.com/sourcegraph/deploy-sourcegraph-helm/pull/258)
 
 ## 4.5.0