Include trailing line breaks when stripping dot from metric name

Author: Simran-B

site/themes/arangodb-docs-theme/layouts/shortcodes/metrics.md

@@ -14,7 +14,7 @@
 
 {{ range $metric := $metricGroup }}
 
-#### {{ strings.TrimRight "." $metric.help }}
+#### {{ strings.TrimRight ".\r\n" $metric.help }}
 
 {{ if eq $metric.type "histogram" -}}
 `{{ $metric.name }}` (basename)<br>