Update docs/product/explore/metrics/index.mdx

Co-authored-by: Kyle a.k.a. TechSquidTV <[email protected]>

Author: coolguyzone

docs/product/explore/metrics/index.mdx

@@ -98,13 +98,15 @@ Instead of "metric alert → guesswork," debugging becomes a **single flow**: Me
 
 Each metric event automatically includes:
 
-- **name**: The metric identifier (e.g., `checkout.failed`)
-- **kind**: The metric type (counter, gauge, or distribution)
-- **value**: The numeric value
-- **trace_id**: Links to the active trace when the metric was recorded
-- **span_id**: Links to the specific span within the trace
-- **unit** (optional): Unit of measurement (e.g., `usd`, `ms`, `bytes`)
-- **custom attributes**: Any key-value pairs you add for grouping and filtering
+| **Field**           | **Description**                                                                 |
+|----------------------|---------------------------------------------------------------------------------|
+| **name**             | The metric identifier (e.g., `checkout.failed`)                                |
+| **kind**             | The metric type (counter, gauge, or distribution)                              |
+| **value**            | The numeric value                                                              |
+| **trace_id**         | Links to the active trace when the metric was recorded                         |
+| **span_id**          | Links to the specific span within the trace                                    |
+| **unit** *(optional)*| Unit of measurement (e.g., `usd`, `ms`, `bytes`)                               |
+| **custom attributes**| Any key-value pairs you add for grouping and filtering                         |
 
 ## Alerts and Dashboard Widgets