Update documentation

Author: ismirlia

website/docs/d/pi_catalog_images.html.markdown

@@ -57,14 +57,15 @@ In addition to the argument reference list, you can access the following attribu
   - `crn` - (String) The CRN of this resource.
   - `description` - (String) The description of an image.
   - `disk_format` - (String) The disk format.
-  - `endianness` - (String) The `Endianness` order.
+  - `endianness` - (String) The endianness order.
   - `href` - (String) The `href` of an image.
   - `hypervisor_type` - (String) Hypervisor type.
   - `image_id` - (String) The unique identifier of an image.
   - `image_type` - (String) The identifier of this image type.
   - `last_update_date` - (String) The last updated date of an image.
   - `name` - (String) The name of the image.
   - `operating_system` - (String)  Operating System.
+  - `shared` - (String) Indicates whether the image is shared.
   - `state` - (String) The state of an Operating System.
   - `storage_pool` - (String) Storage pool where image resides.
   - `storage_type` - (String) The storage type of an image.

website/docs/d/pi_image.html.markdown

@@ -47,11 +47,15 @@ Review the argument references that you can specify for your data source.
 In addition to all argument reference list, you can access the following attribute references after your data source is created.
 
 - `architecture` - (String) The CPU architecture that the image is designed for.
+- `container_format` - (String) The container format.
 - `crn` - (String) The CRN of this resource.
+- `disk_format` - (String) The disk format.
+- `endianness` - (String) The endianness order.
 - `hypervisor` - (String) Hypervisor type.
 - `id` - (String) The unique identifier of the image.
 - `image_type` - (String) The identifier of this image type.
 - `operating_system` - (String) The operating system that is installed with the image.
+- `shared` - (String) Indicates whether the image is shared.
 - `size` - (String) The size of the image in megabytes.
 - `source_checksum` - (String) Checksum of the image.
 - `state` - (String) The state for this image.

website/docs/d/pi_images.html.markdown

@@ -49,11 +49,18 @@ In addition to all argument reference list, you can access the following attribu
 - `image_info` - (List) List of all supported images.
 
   Nested scheme for `image_info`:
+  - `architecture` - (String) The CPU architecture that the image is designed for.
+  - `container_format` - (String) The container format.
   - `crn` - (String) The CRN of this resource.
+  - `disk_format` - (String) The disk format.
+  - `endianness` - (String) The endianness order.
   - `href` - (String) The hyper link of an image.
+  - `hypervisor` - (String) Hypervisor type.
   - `id` - (String) The unique identifier of an image.
   - `image_type` - (String) The identifier of this image type.
   - `name`-  (String) The name of an image.
+  - `operating_system` - (String) The operating system that is installed with the image.
+  - `shared` - (String) Indicates whether the image is shared.
   - `source_checksum` - (String) Checksum of the image.
   - `state` - (String) The state of an image.
   - `storage_pool` - (String) Storage pool where image resides.