fix typo

Author: denrase

docs/platforms/javascript/common/feature-flags/index.mdx

@@ -21,7 +21,7 @@ notSupported:
   - javascript.nestjs
   - javascript.node
   - javascript.wasm
-description: With Feature Flags, Sentry tracks feature flag evaluations in your application, keeps an audit log feature flag changes, and reports any suspicious updates that may have caused an error.
+description: With Feature Flags, Sentry tracks feature flag evaluations in your application, keeps an audit log of feature flag changes, and reports any suspicious updates that may have caused an error.
 ---
 
 <PlatformContent includePath="feature-flags/prerelease-alert" />