Update docs/platforms/javascript/common/tracing/span-metrics/index.mdx

Co-authored-by: Alex Krawiec <[email protected]>

Author: codyde

docs/platforms/javascript/common/tracing/span-metrics/index.mdx

@@ -100,7 +100,7 @@ Sentry.init({
 
 1. **Metric Naming**
    - Use clear, consistent naming patterns
-   - Include the metric category (e.g., `db`, `cache`, `http`)
+   - Include the metric category (examples: `db`, `cache`, `http`)
    - Use snake_case for metric names
    - Avoid high-cardinality values in metric names