Issue #533 document the self monitoring feature

* Update metricshub-doc/src/site/markdown/configuration/configure-monitoring.md

metricshub-doc/src/site/markdown/configuration/configure-monitoring.md

@@ -1219,7 +1219,7 @@ The self-monitoring feature helps you track **MetricsHub**'s performance by prov
 
 To enable this feature, set the `enableSelfMonitoring` parameter to `true` in the relevant section of the `config/metricshub.yaml` file as described below:
 
-| Self-Monitoring                                   | Set enableSelfMonitoring to true                      |
+| Self-Monitoring                                    | Set enableSelfMonitoring to true                        |
 |----------------------------------------------------|---------------------------------------------------------|
 | For all resources                                  | In the global section (top of the file)                 |
 | For all the resources of a specific resource group | Under the corresponding `<resource-group-name>` section |