Update readme for Azure.Monitor.Query (Azure#23934)

Author: nisha-bhatia

sdk/monitor/Azure.Monitor.Query/README.md

@@ -72,6 +72,7 @@ All client instance methods are thread-safe and independent of each other ([guid
 ## Examples
 
 - [Logs query](#logs-query)
+  - [Handle logs query response](#handle-logs-query-response)
   - [Map logs query results to a model](#map-logs-query-results-to-a-model)
   - [Map logs query results to a primitive](#map-logs-query-results-to-a-primitive)
   - [Print logs query results as a table](#print-logs-query-results-as-a-table)
@@ -80,6 +81,7 @@ All client instance methods are thread-safe and independent of each other ([guid
   - [Set logs query timeout](#set-logs-query-timeout)
   - [Query multiple workspaces](#query-multiple-workspaces)
 - [Metrics query](#metrics-query)
+  - [Handle metrics query response](#handle-metrics-query-response)
 
 ### Logs query
 
@@ -101,6 +103,23 @@ foreach (var row in table.Rows)
 }
 ```
 
+#### Handle logs query response
+The `Query` method returns the `LogsQueryResult`, while the `QueryBatch` method returns the `LogsBatchQueryResult`. Here's a hierarchy of the response:
+
+```
+LogsQueryResult
+|---Error
+|---Status
+|---Table
+    |---Name
+    |---Columns (list of `LogsTableColumn` objects)
+        |---Name
+        |---Type
+    |---Rows (list of `LogsTableRows` objects)
+        |---Count
+|---AllTables (list of `LogsTable` objects)    
+```
+
 #### Map logs query results to a model
 
 You can map logs query results to a model using the `LogsQueryClient.QueryAsync<T>` method.
@@ -307,6 +326,31 @@ foreach (var metric in results.Value.Metrics)
 }
 ```
 
+#### Handle metrics query response
+	
+The metrics query API returns a `MetricsQueryResult` object. The `MetricsQueryResult` object contains properties such as a list of `MetricResult`-typed objects, `Cost`, `Namespace`, `ResourceRegion`, `TimeSpan`, and `Interval`. The `MetricResult` objects list can be accessed using the `metrics` param. Each `MetricResult` object in this list contains a list of `MetricTimeSeriesElement` objects. Each `MetricTimeSeriesElement` object contains `Metadata` and `Values` properties. 
+
+Here's a hierarchy of the response:
+
+```
+MetricsQueryResult
+|---Cost
+|---Interval
+|---Namespace
+|---ResourceRegion
+|---TimeSpan
+|---Metrics (list of `MetricResult` objects)
+    |---Id
+    |---Type
+    |---Name
+    |---DisplayDescription
+    |---Error
+    |---Unit
+    |---TimeSeries (list of `MetricTimeSeriesElement` objects)
+        |---Metadata
+        |---Values
+```
+
 ## Troubleshooting
 
 ### General