Language fixes to tracing details

Author: codyde

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

@@ -42,11 +42,10 @@ When adding metrics as span attributes:
 - Use consistent naming conventions (e.g., `category.metric_name`)
 - Keep attribute names concise but descriptive
 - Use appropriate data types (string, number, boolean, or arrays of these types)
-- Consider the cardinality of your metrics to avoid excessive unique combinations
 
 ## Creating Dedicated Metric Spans
 
-For more detailed transaction tracking, you can create custom dedicated spans that focus on specific metrics or attributes that you want to track. This approach provides better discoverability and more precise span configurations, however it can also appear to create more noise in your transaction traces.
+For more detailed operations, task, or process tracking, you can create custom dedicated spans that focus on specific metrics or attributes that you want to track. This approach provides better discoverability and more precise span configurations, however it can also appear to create more noise in your trace waterfall.
 
 ```javascript
 Sentry.startSpan(
@@ -172,21 +171,17 @@ Sentry.startSpan(
     name: 'File Upload and Processing',
     op: 'file.process',
     attributes: {
-      'file.size_bytes': 15728640,  // 15MB
       'file.type': 'image/jpeg',
       'file.name': 'user-profile.jpg',
       'processing.steps_completed': ['resize', 'compress', 'metadata'],
-      'processing.output_size_bytes': 524288,  // 512KB
       'processing.compression_ratio': 0.033,
-      'upload.chunk_size': 1048576,  // 1MB
       'upload.chunks_completed': 15,
       'upload.storage_provider': 's3',
-      'upload.cdn_propagation_ms': 1500,
       'error.count': 0
     }
   },
   async () => {
-    // File processing and upload execution
+    // Existing file processing and upload functionality
   }
 );
 ```
@@ -206,7 +201,7 @@ Sentry.startSpan(
     }
   },
   async () => {
-    // API call execution
+    // Existing API call functionality
   }
 );
 ```
@@ -258,7 +253,7 @@ Sentry.startSpan(
     }
   },
   async () => {
-    // Checkout process execution
+    // Existing checkout process functionality
   }
 );
 ```