[v10.0.x] docs: fix admonition type capitalization (#70716)

docs: fix admonition type capitalization (#70713)

fixed admonition type

(cherry picked from commit 85a8315920)

Co-authored-by: Isabel <76437239+imatwawana@users.noreply.github.com>

docs/sources/dashboards/use-dashboards/index.md

@@ -105,7 +105,7 @@ The following table provides example relative ranges:
 | This Year              | `now/Y`     | `now/Y`     |
 | Previous fiscal year   | `now-1y/fy` | `now-1y/fy` |
 
-{{% admonition type="Note" %}}
+{{% admonition type="note" %}}
 
 Grafana Alerting does not support the following syntaxes at this time:
 
@@ -160,7 +160,7 @@ This section also displays recently used absolute ranges.
 
 #### Semi-relative time range
 
-{{% admonition type="Note" %}}
+{{% admonition type="note" %}}
 
 Grafana Alerting does not support semi-relative time ranges.