[docs] Add Terraform example for opensearch_channel_configuation (#154)

* [docs] Add Terraform example for opensearch_channel_configuation

Signed-off-by: Vonter <[email protected]>

* [docs] Change webhook URL in example Terraform

Signed-off-by: Vonter <[email protected]>

---------

Signed-off-by: Vonter <[email protected]>

docs/resources/channel_configuration.md

@@ -10,7 +10,27 @@ description: |-
 
 Provides an OpenSearch channel configuration. Please refer to the OpenSearch channel configuration documentation for details.
 
-
+## Example Usage
+
+```terraform
+# Create a channel configuration
+resource "opensearch_channel_configuration" "configuration_1" {
+  body = <<EOF
+{
+  "config_id": "configuration_1",
+  "config": {
+    "name": "name",
+    "description" : "description",
+    "config_type" : "slack",
+    "is_enabled" : true,
+    "slack": {
+      "url": "https://sample-slack-webhook"
+    }
+  }
+}
+EOF
+}
+```
 
 <!-- schema generated by tfplugindocs -->
 ## Schema
@@ -22,3 +42,11 @@ Provides an OpenSearch channel configuration. Please refer to the OpenSearch cha
 ### Read-Only
 
 - `id` (String) The ID of this resource.
+
+## Import
+
+Import is supported using the following syntax:
+
+```shell
+terraform import opensearch_channel_configuration.configuration_1 configuration_1
+```

examples/resources/opensearch_channel_configuration/import.sh

@@ -0,0 +1 @@
+terraform import opensearch_channel_configuration.configuration_1 configuration_1

examples/resources/opensearch_channel_configuration/resource.tf

@@ -0,0 +1,17 @@
+# Create a channel configuration
+resource "opensearch_channel_configuration" "configuration_1" {
+  body = <<EOF
+{
+  "config_id": "configuration_1",
+  "config": {
+    "name": "name",
+    "description" : "description",
+    "config_type" : "slack",
+    "is_enabled" : true,
+    "slack": {
+      "url": "https://sample-slack-webhook"
+    }
+  }
+}
+EOF
+}