Added an example of the `ScriptAction` preset (#2228)

* Added an example of the `ScriptAction` preset

Signed-off-by: Oleg Andreych <kjiec4@gmail.com>

* Changed brackets for some newly added anchors

Signed-off-by: Oleg Andreych <kjiec4@gmail.com>

* add JS and JRuby

Signed-off-by: Stefan Höhn <mail@stefanhoehn.com>

* fix fences

Signed-off-by: Stefan Höhn <mail@stefanhoehn.com>

* fix fences

Signed-off-by: Stefan Höhn <mail@stefanhoehn.com>

* js indentation

Signed-off-by: Stefan Höhn <mail@stefanhoehn.com>

* jruby indentation

Signed-off-by: Stefan Höhn <mail@stefanhoehn.com>

---------

Signed-off-by: Oleg Andreych <kjiec4@gmail.com>
Signed-off-by: Stefan Höhn <mail@stefanhoehn.com>
Co-authored-by: Stefan Höhn <mail@stefanhoehn.com>

configuration/jsr223.md

@@ -238,6 +238,8 @@ The `default` preset is preloaded, so it does not require importing.
 - [`RuleSimple`](#rulesimple-preset)
 - [`RuleSupport`](#rulesupport-preset)
 - [`RuleFactories`](#rulefactories-preset)
+- [`ScriptAction`](#scriptaction-preset)
+- [`cache`](#cache-preset)
 
 #### Default Preset (`importPreset` not required)
 
@@ -375,6 +377,60 @@ scriptExtension.importPreset("RuleFactories")
 | `ConditionHandlerFactory` | `org.openhab.core.automation.module.script.rulesupport.shared.factories.ScriptedConditionHandlerFactory` |
 | `TriggerHandlerFactory`   | `org.openhab.core.automation.module.script.rulesupport.shared.factories.ScriptedTriggerHandlerFactory`   |
 
+#### `ScriptAction` Preset
+
+This preset can be useful for scheduling asynchronous code execution with `org.openhab.core.automation.module.script.action.Timer`.
+
+| Variable          | Description                                                        |
+|-------------------|--------------------------------------------------------------------|
+| `scriptExecution` | `org.openhab.core.automation.module.script.action.ScriptExecution` |
+
+:::: tabs
+
+::: tab Groovy
+
+```groovy
+scriptExtension.importPreset("ScriptAction")
+scriptExtension.importPreset("RuleSupport")
+scriptExtension.importPreset("RuleSimple")
+
+scriptExecution.createTimer(ZonedDateTime.now(), () -> {
+  org.slf4j.LoggerFactory.getLogger('Test logger').warn('Timer ran')
+})
+```
+
+:::
+
+::: tab JSScripting
+
+```javascript
+actions.scriptExecution.createTimer(time.toZDT(1000), () => {
+  console.info('Timer ran');
+})
+```
+
+:::
+
+::: tab DSL
+
+```java
+createTimer(now.plusSeconds(1), [ |
+  logInfo('Test logger', 'Timer ran')
+])
+```
+
+:::
+
+::: tab JRuby
+
+```ruby
+after(1.second) do
+  logger.info("Timer ran")
+end
+```
+
+:::
+
 #### `cache` Preset
 
 The `cache` preset does not provide a default import and needs to be imported explicitly.