removed schema_version parameter

Author: ashwinkumar12345

docs/ism/policies.md

@@ -22,7 +22,6 @@ Parameter | Description | Type | Required | Read Only
 :--- | :--- |:--- |:--- |
 `policy_id` |  The name of the policy. | `string` | Yes | No
 `description` |  A human-readable description of the policy. | `string` | Yes | No
-`schema_version` | The version number of the policy. Increment as you add or remove new fields. | `number` | Yes | No
 `last_updated_time`  |  The time the policy was last updated. | `timestamp` | Yes | Yes
 `error_notification` |  The destination and message template for error notifications. The destination could be Amazon Chime, Slack, or a webhook URL. | `object` | No | No
 `default_state` | The default starting state for each index that uses this policy. | `string` | Yes | No
@@ -210,16 +209,16 @@ Parameter | Description | Type | Required
 
 ```json
 {
-    "notification": {
-        "destination": {
-            "chime": {
-                "url": "<url>"
-                             }
-                },
-        "message_template": {
-            "source": "{% raw %}The index {index_name} is being deleted{% endraw %}"
-                }
-        }
+   "notification":{
+      "destination":{
+         "chime":{
+            "url":"<url>"
+         }
+      },
+      "message_template":{
+         "source":"The index {index_name} is being deleted"
+      }
+   }
 }
 ```
 
@@ -241,8 +240,8 @@ Parameter | Description | Type | Required
 `min_doc_count` | The minimum document count of the index required to transition. | `number` | No
 `min_size` | The minimum size of the index required to transition. | `string` | No
 `cron` | The `cron` job that triggers the transition if no other transition happens first. | `object` | No
-`expression` | The `cron` expression that triggers the transition. | `string` | Yes
-`timezone` | The timezone that triggers the transition. | `string` | Yes
+`cron.expression` | The `cron` expression that triggers the transition. | `string` | Yes
+`cron.timezone` | The timezone that triggers the transition. | `string` | Yes
 
 If no conditions are specified, ISM transitions the index to the state the moment it checks. ISM checks the conditions every 5 minutes by default.