update common props table to include other STIX objects

Author: austinmccollum

articles/sentinel/stix-objects-api.md

@@ -100,9 +100,9 @@ All the objects you import with the STIX objects API share these common properti
 
 |Property Name	|Type |	Description |
 |----|----|----|
-|`id` (required)| string | An ID used to identify the indicator. See section [2.9](https://docs.oasis-open.org/cti/stix/v2.1/cs01/stix-v2.1-cs01.html#_64yvzeku5a5c) for specifications on how to create an `id`. The format looks something like `indicator--<UUID>`|
-|`spec_version` (optional) | string | STIX indicator version. This value is required in the STIX specification, but since this API only supports STIX 2.0 and 2.1, when this field isn't set, the API defaults to `2.1`|
-|`type` (required)|	string | The value of this property *must* be `indicator`.|
+|`id` (required)| string | An ID used to identify the STIX object. See section [2.9](https://docs.oasis-open.org/cti/stix/v2.1/cs01/stix-v2.1-cs01.html#_64yvzeku5a5c) for specifications on how to create an `id`. The format looks something like `indicator--<UUID>`|
+|`spec_version` (optional) | string | STIX object version. This value is required in the STIX specification, but since this API only supports STIX 2.0 and 2.1, when this field isn't set, the API defaults to `2.1`|
+|`type` (required)|	string | The value of this property *must* be a supported STIX object.|
 |`created` (required) | timestamp | See section [3.2](https://docs.oasis-open.org/cti/stix/v2.1/cs01/stix-v2.1-cs01.html#_xzbicbtscatx) for specifications of this common property.|
 |`created_by_ref` (optional) | string | The created_by_ref property specifies the ID property of the entity that created this object.<br><br>If this attribute is omitted, the source of this information is undefined. For object creators who wish to remain anonymous, keep this value undefined.|
 |`modified` (required) | timestamp | See section [3.2](https://docs.oasis-open.org/cti/stix/v2.1/cs01/stix-v2.1-cs01.html#_xzbicbtscatx) for specifications of this common property.|