[Actors] Add `ttl` and `data` to API reference (#4188)

* add ttl and data to actors api

Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com>

* Update daprdocs/content/en/reference/api/actors_api.md

Co-authored-by: Mark Fussell <markfussell@gmail.com>
Signed-off-by: Hannah Hunter <94493363+hhunter-ms@users.noreply.github.com>

* Update daprdocs/content/en/reference/api/actors_api.md

Co-authored-by: Mark Fussell <markfussell@gmail.com>
Signed-off-by: Hannah Hunter <94493363+hhunter-ms@users.noreply.github.com>

* Update daprdocs/content/en/reference/api/actors_api.md

Signed-off-by: Mark Fussell <markfussell@gmail.com>

* add explanation from josh

Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com>

---------

Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com>
Signed-off-by: Hannah Hunter <94493363+hhunter-ms@users.noreply.github.com>
Signed-off-by: Mark Fussell <markfussell@gmail.com>
Co-authored-by: Mark Fussell <markfussell@gmail.com>

daprdocs/content/en/reference/api/actors_api.md

@@ -114,7 +114,7 @@ Parameter | Description
 
 #### Examples
 
-> Note, the following example uses the `ttlInSeconds` field, which requires the [`ActorStateTTL` feature enabled]]({{< ref "support-preview-features.md" >}}).
+> Note, the following example uses the `ttlInSeconds` field, which requires the [`ActorStateTTL` feature enabled]({{< ref "support-preview-features.md" >}}).
 
 ```shell
 curl -X POST http://localhost:3500/v1.0/actors/stormtrooper/50/state \
@@ -202,6 +202,8 @@ A JSON object with the following fields:
 |-------|--------------|
 | `dueTime` | Specifies the time after which the reminder is invoked. Its format should be [time.ParseDuration](https://pkg.go.dev/time#ParseDuration)
 | `period` | Specifies the period between different invocations. Its format should be [time.ParseDuration](https://pkg.go.dev/time#ParseDuration) or ISO 8601 duration format with optional recurrence.
+| `ttl` | Sets time at or interval after which the timer or reminder will be expired and deleted. Its format should be [time.ParseDuration format](https://pkg.go.dev/time#ParseDuration), RFC3339 date format, or ISO 8601 duration format.
+| `data` |  A string value and can be any related content. Content is returned when the reminder expires. For example this may be useful for returning a URL or anything related to the content.
 
 `period` field supports `time.Duration` format and ISO 8601 format with some limitations. For `period`, only duration format of ISO 8601 duration `Rn/PnYnMnWnDTnHnMnS` is supported. `Rn/` specifies that the reminder will be invoked `n` number of times. 
 
@@ -210,7 +212,11 @@ A JSON object with the following fields:
 
 If `Rn/` is not specified, the reminder will run an infinite number of times until deleted.
 
-The following specifies a `dueTime` of 3 seconds and a period of 7 seconds.
+If only `ttl` and `dueTime` are set, the reminder will be accepted. However, only the `dueTime` takes effect. For example, the reminder triggers at `dueTime`, and `ttl` is ignored.
+
+If `ttl`, `dueTime`, and `period` are set, the reminder first fires at `dueTime`, then repeatedly fires and expires according to `period` and `ttl`.
+
+The following example specifies a `dueTime` of 3 seconds and a period of 7 seconds.
 
 ```json
 {
@@ -237,6 +243,25 @@ To configure the reminder to fire only once, the period should be set to empty s
 }
 ```
 
+When you specify the repetition number in both `period` and `ttl`, the timer/reminder is stopped when either condition is met. The following example has a timer with a `period` of 3 seconds (in ISO 8601 duration format) and a `ttl` of 20 seconds. This timer fires immediately after registration, then every 3 seconds after that for the duration of 20 seconds, after which it never fires again since the `ttl` was met
+
+```json
+{
+  "period":"PT3S",
+  "ttl":"20s"
+}
+```
+
+Need description for data.
+
+```json
+{
+  "data": "someData",
+  "dueTime": "1m",
+  "period": "20s"
+}
+```
+
 #### HTTP Response Codes
 
 Code | Description