Functions doc fix for image and image_digest

Author: srishtipmishra

CHANGELOG.md

@@ -8,6 +8,9 @@
 - Support for Marketplace-Community Catalog
 - Support for Network Load Balancer
 
+### Fixed
+- Doc update for `image_digest` and `image` fields in `functions` resource
+
 ## 4.18.0 (March 17, 2021)
 
 ### Added

website/docs/r/functions_function.html.markdown

@@ -42,8 +42,8 @@ The following arguments are supported:
 * `defined_tags` - (Optional) (Updatable) Defined tags for this resource. Each key is predefined and scoped to a namespace. For more information, see [Resource Tags](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/resourcetags.htm).  Example: `{"Operations.CostCenter": "42"}` 
 * `display_name` - (Required) The display name of the function. The display name must be unique within the application containing the function. Avoid entering confidential information. 
 * `freeform_tags` - (Optional) (Updatable) Free-form tags for this resource. Each tag is a simple key-value pair with no predefined name, type, or namespace. For more information, see [Resource Tags](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/resourcetags.htm).  Example: `{"Department": "Finance"}` 
-* `image` - (Required) (Updatable) The qualified name of the Docker image to use in the function, including the image tag. The image should be in the Oracle Cloud Infrastructure Registry that is in the same region as the function itself. Example: `phx.ocir.io/ten/functions/function:0.0.1` 
-* `image_digest` - (Optional) (Updatable) The image digest for the version of the image that will be pulled when invoking this function. If no value is specified, the digest currently associated with the image in the Oracle Cloud Infrastructure Registry will be used. Example: `sha256:ca0eeb6fb05351dfc8759c20733c91def84cb8007aa89a5bf606bc8b315b9fc7` 
+* `image` - (Required) (Updatable) The qualified name of the Docker image to use in the function, including the image tag. The image should be in the Oracle Cloud Infrastructure Registry that is in the same region as the function itself. This field must be updated if image_digest is updated. Example: `phx.ocir.io/ten/functions/function:0.0.1`
+* `image_digest` - (Optional) (Updatable) The image digest for the version of the image that will be pulled when invoking this function. If no value is specified, the digest currently associated with the image in the Oracle Cloud Infrastructure Registry will be used. This field must be updated if image is updated. Example: `sha256:ca0eeb6fb05351dfc8759c20733c91def84cb8007aa89a5bf606bc8b315b9fc7`
 * `memory_in_mbs` - (Required) (Updatable) Maximum usable memory for the function (MiB).
 * `timeout_in_seconds` - (Optional) (Updatable) Timeout for executions of the function. Value in seconds.
 
@@ -64,8 +64,8 @@ The following attributes are exported:
 * `display_name` - The display name of the function. The display name is unique within the application containing the function. 
 * `freeform_tags` - Free-form tags for this resource. Each tag is a simple key-value pair with no predefined name, type, or namespace. For more information, see [Resource Tags](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/resourcetags.htm).  Example: `{"Department": "Finance"}` 
 * `id` - The [OCID](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/identifiers.htm) of the function. 
-* `image` - The qualified name of the Docker image to use in the function, including the image tag. The image should be in the Oracle Cloud Infrastructure Registry that is in the same region as the function itself. Example: `phx.ocir.io/ten/functions/function:0.0.1` 
-* `image_digest` - The image digest for the version of the image that will be pulled when invoking this function. If no value is specified, the digest currently associated with the image in the Oracle Cloud Infrastructure Registry will be used. Example: `sha256:ca0eeb6fb05351dfc8759c20733c91def84cb8007aa89a5bf606bc8b315b9fc7` 
+* `image` - The qualified name of the Docker image to use in the function, including the image tag. The image should be in the Oracle Cloud Infrastructure Registry that is in the same region as the function itself. This field must be updated if image_digest is updated. Example: `phx.ocir.io/ten/functions/function:0.0.1` 
+* `image_digest` - The image digest for the version of the image that will be pulled when invoking this function. If no value is specified, the digest currently associated with the image in the Oracle Cloud Infrastructure Registry will be used. This field must be updated if image is updated. Example: `sha256:ca0eeb6fb05351dfc8759c20733c91def84cb8007aa89a5bf606bc8b315b9fc7`
 * `invoke_endpoint` - The base https invoke URL to set on a client in order to invoke a function. This URL will never change over the lifetime of the function and can be cached. 
 * `memory_in_mbs` - Maximum usable memory for the function (MiB).
 * `state` - The current state of the function.