chore: fixed .rst file

Author: lla-dane

docs/examples.metrics.rst

@@ -133,7 +133,7 @@ To intercat between the 2 nodes via kad-dht, we have 2 ways:
 - `PUT_VAUE` in one node, and `GET_VALUE` in another
 - `ADD_PROVIDER` in one node, and `GET_PROVIDERS` in another
 
-.. code-block:: console:
+.. code-block:: console
 
     $ put /exp/fa kad-dht-value
     Stored value: kad-dht-value with key: /exp/fa
@@ -142,7 +142,7 @@ To intercat between the 2 nodes via kad-dht, we have 2 ways:
     $ get /exp/fa
     Retrieved value: kad-dht-value
 
-.. code-block:: console:
+.. code-block:: console
 
     $ advertize content-id
     Advertised as provider for content: content-id