Fix typo

Change-Id: I52958fe30538491b0c8b150b3a206b8009b537c1
diff --git a/prometheus/meta/prometheus.yml b/prometheus/meta/prometheus.yml
index fa9cf20..80768e2 100644
--- a/prometheus/meta/prometheus.yml
+++ b/prometheus/meta/prometheus.yml
@@ -78,7 +78,7 @@
         service: remote_storage_adapter
       annotations:
         summary: "Remote storage adapter metrics sent/received ratio reached limit of {%- endraw %} {{ threshold }}{%- raw %}"
-        description: "The remote storage adapter metrics on sent to received ratio the {{ $labels.instance }} instance is {{ $value }}."
+        description: "The remote storage adapter metrics on sent to received ratio on the {{ $labels.instance }} instance is {{ $value }}."
 {% endraw %}
     RemoteStorageAdapterMetricsIgnoredWarning:
       {%- set threshold = monitoring.remote_storage_adapter.ignored_vs_sent_ratio|float %}