Update rs-prometheus-metrics-v2.md (#1890)

Author: maayanagranat

content/embeds/rs-prometheus-metrics-v2.md

@@ -113,9 +113,9 @@
 | <span class="break-all">redis_server_blocked_clients</span> | Count the clients waiting on a blocking call |
 | <span class="break-all">redis_server_connected_clients</span> | Number of client connections to the specific shard |
 | <span class="break-all">redis_server_connected_slaves</span> | Number of connected replicas |
-| <span class="break-all">redis_server_db0_avg_ttl</span> | Average TTL of all volatile keys |
+| <span class="break-all">redis_server_db_avg_ttl</span> | Average TTL of all volatile keys |
 | <span class="break-all">redis_server_expired_keys</span> | Total count of volatile keys |
-| <span class="break-all">redis_server_db0_keys</span> | Total key count |
+| <span class="break-all">redis_server_db_keys</span> | Total key count. |
 | <span class="break-all">redis_server_evicted_keys</span> | Keys evicted so far (since restart) |
 | <span class="break-all">redis_server_expire_cycle_cpu_milliseconds</span> | The cumulative amount of time spent on active expiry cycles |
 | <span class="break-all">redis_server_expired_keys</span> | Keys expired so far (since restart) |
@@ -214,4 +214,4 @@
 
 1. <a name="tnote-1"></a> Available since RediSearch 2.6.
 2. <a name="tnote-2"></a> Available since RediSearch 2.8.
-3. <a name="tnote-3"></a> Available since RediSearch 8.0.
+3. <a name="tnote-3"></a> Available since RediSearch 8.0.