[Observability][8.19] Docs new context.grouping variable added to Obs rules (elastic#4921)

* First draft

* Updates metric threshold docs

* Removes var from metric threshold

* uno reverse

* Update docs/en/observability/apm-error-count-threshold-rule.asciidoc

Co-authored-by: Bena Kansara <[email protected]>

* Update docs/en/observability/apm-failed-transaction-rate-threshold-rule.asciidoc

Co-authored-by: Bena Kansara <[email protected]>

* Update docs/en/observability/apm-latency-threshold-rule.asciidoc

Co-authored-by: Bena Kansara <[email protected]>

* Update docs/en/observability/slo-burn-rate-alert.asciidoc

Co-authored-by: Bena Kansara <[email protected]>

---------

Co-authored-by: Bena Kansara <[email protected]>

Author: nastasha-solomon

docs/en/observability/apm-error-count-threshold-rule.asciidoc

@@ -95,31 +95,34 @@ You an also specify {kibana-ref}/rule-action-variables.html[variables common to
 Link to the alert troubleshooting view for further context and details. This will be an empty string if the server.publicBaseUrl is not configured.
 
 `context.environment`::
-The transaction type the alert is created for
+The transaction type the alert is created for.
+
+`context.grouping`:: 
+The object containing groups that are reporting data.
 
 `context.errorGroupingKey`::
-The error grouping key the alert is created for
+The error grouping key the alert is created for.
 
 `context.errorGroupingName`::
-The error grouping name the alert is created for
+The error grouping name the alert is created for.
 
 `context.interval`::
-The length and unit of the time period where the alert conditions were met
+The length and unit of the time period where the alert conditions were met.
 
 `context.reason`::
-A concise description of the reason for the alert
+A concise description of the reason for the alert.
 
 `context.serviceName`::
-The service the alert is created for
+The service the alert is created for.
 
 `context.threshold`::
-Any trigger value above this value will cause the alert to fir
+Any trigger value above this value will cause the alert to fire.
 
 `context.transactionName`::
-The transaction name the alert is created for
+The transaction name the alert is created for.
 
 `context.triggerValue`::
-The value that breached the threshold and triggered the alert
+The value that breached the threshold and triggered the alert.
 
 `context.viewInAppUrl`::
-Link to the alert source
+Link to the alert source.

docs/en/observability/apm-failed-transaction-rate-threshold-rule.asciidoc

@@ -88,28 +88,31 @@ You an also specify {kibana-ref}/rule-action-variables.html[variables common to
 Link to the alert troubleshooting view for further context and details. This will be an empty string if the server.publicBaseUrl is not configured.
 
 `context.environment`::
-The transaction type the alert is created for
+The transaction type the alert is created for.
+
+`context.grouping`:: 
+The object containing groups that are reporting data.
 
 `context.interval`::
-The length and unit of the time period where the alert conditions were met
+The length and unit of the time period where the alert conditions were met.
 
 `context.reason`::
-A concise description of the reason for the alert
+A concise description of the reason for the alert.
 
 `context.serviceName`::
-The service the alert is created for
+The service the alert is created for.
 
 `context.threshold`::
-Any trigger value above this value will cause the alert to fire
+Any trigger value above this value will cause the alert to fire.
 
 `context.transactionName`::
-The transaction name the alert is created for
+The transaction name the alert is created for.
 
 `context.transactionType`::
-The transaction type the alert is created for
+The transaction type the alert is created for.
 
 `context.triggerValue`::
-The value that breached the threshold and triggered the alert
+The value that breached the threshold and triggered the alert.
 
 `context.viewInAppUrl`::
-Link to the alert source
+Link to the alert source.

docs/en/observability/apm-latency-threshold-rule.asciidoc

@@ -92,6 +92,9 @@ Link to the alert troubleshooting view for further context and details. This wil
 `context.environment`::
 The transaction type the alert is created for.
 
+`context.grouping`:: 
+The object containing groups that are reporting data.
+
 `context.interval`::
 The length and unit of the time period where the alert conditions were met.
 

docs/en/observability/slo-burn-rate-alert.asciidoc

@@ -64,6 +64,7 @@ You an also specify {kibana-ref}/rule-action-variables.html[variables common to
 
 `context.alertDetailsUrl`:: Link to the alert troubleshooting view for further context and details. This will be an empty string if the `server.publicBaseUrl` is not configured.
 `context.burnRateThreshold`:: The burn rate threshold value.
+`context.grouping`:: The object containing groups that are reporting data.
 `context.longWindow`:: The window duration with the associated burn rate value.
 `context.reason`:: A concise description of the reason for the alert.
 `context.shortWindow`:: The window duration with the associated burn rate value.