Update README.rst (#4114)

Author: UmarFarooqkadri

docs/examples/metrics/instruments/README.rst

@@ -41,4 +41,41 @@ The resulting metrics will appear in the output from the collector and look simi
 
 .. code-block:: sh
 
-TODO
+    ScopeMetrics #0
+    ScopeMetrics SchemaURL:
+    InstrumentationScope getting-started 0.1.2
+    Metric #0
+    Descriptor:
+         -> Name: counter
+         -> Description:
+         -> Unit:
+         -> DataType: Sum
+         -> IsMonotonic: true
+         -> AggregationTemporality: Cumulative
+    NumberDataPoints #0
+    StartTimestamp: 2024-08-09 11:21:42.145179 +0000 UTC
+    Timestamp: 2024-08-09 11:21:42.145325 +0000 UTC
+    Value: 1
+    Metric #1
+    Descriptor:
+         -> Name: updown_counter
+         -> Description:
+         -> Unit:
+         -> DataType: Sum
+         -> IsMonotonic: false
+         -> AggregationTemporality: Cumulative
+    NumberDataPoints #0
+    StartTimestamp: 2024-08-09 11:21:42.145202 +0000 UTC
+    Timestamp: 2024-08-09 11:21:42.145325 +0000 UTC
+    Value: -4
+    Metric #2
+    Descriptor:
+         -> Name: histogram
+         -> Description:
+         -> Unit:
+         -> DataType: Histogram
+         -> AggregationTemporality: Cumulative
+    HistogramDataPoints #0
+    StartTimestamp: 2024-08-09 11:21:42.145221 +0000 UTC
+    Timestamp: 2024-08-09 11:21:42.145325 +0000 UTC
+    Count: 1