Add hardware section to metadata (#927)

## Related epic

https://app.shortcut.com/xanaduai/epic/45372/users-can-see-example-code-that-demonstrates-how-demos-run-on-real-quantum-hardware-from-aws

## Changes
- Updated the demo metadata schema to include an optional hardware
section (only to include AWS for the time being, but can accommodate
more vendors in future)
- Added the hardware metadata to 1 demo for testing purposes
- Added AWS logo image asset

---------

Co-authored-by: Paul Finlay <[email protected]>
Co-authored-by: Rashid N H M <[email protected]>

Author: 3 people

_static/hardware_logos/aws.png

@@ -39,5 +39,12 @@
             "id": "tutorial_state_preparation",
             "weight": 1.0
         }
+    ],
+    "hardware": [
+        {
+            "id": "aws",
+            "link": "https://pennylane.ai/qml/demos/tutorial_qubit_rotation",
+            "logo": "/_static/hardware_logos/aws.png"
+        }
     ]
 }

demonstrations/tutorial_qubit_rotation.metadata.json

@@ -58,6 +58,13 @@ Below is given an example of a complete metadata file for a demonstration.
             "id": "tutorial_qubit_rotation",
             "weight": 1.0
         }
+    ],
+    "hardware": [
+        {
+            "id": "aws",
+            "link": "https://pennylane.ai/qml/demos/tutorial_quantum_transfer_learning",
+            "logo": "/_static/hardware_logos/aws.png"
+        }
     ]
 }
 ```
@@ -84,6 +91,7 @@ The table below gives details about the fields in the metadata JSON file for ver
 | `basedOnPapers` | Yes, but can be an empty array | `array` of `string` | An array of the DOIs for the papers this demo is based on. |
 | `referencedByPapers` | Yes, but can be an empty array | `array` of `string` | An array of the DOIs of any papers that reference this demo. |
 | `relatedContent` | Yes, but can be an empty array | `array` of `object` | An array of objects describing the content related to this demo. See below for the object structure. |
+| `hardware` | No. Can be an empty array. | `array` of `object` | An array of objects representing third-party vendors who can run the demo on their hardware. See below for the object structure. |
 
 ### Author Object Properties
 
@@ -125,6 +133,14 @@ The table below gives details about the fields in the metadata JSON file for ver
 | `id` | Yes | `string` | The id of the content that this relation refers to. For demos, it's the file name of the demo without the extension - i.e., `tutorial_haar_measure`. |
 | `weight` | Yes | `number` | A number between -1.0 and 1.0 indicating both how closely related these two pieces of content are, and which one it is preferable to encounter first. A value of 1.0 indicates that these two pieces of content are *very* closely related, and this one should be read first, and the linked one second. A value of -1.0 indicates again that these two pieces of content are very closely related, but that the linked one should be read first. A value of 0.0 indicates that these two pieces of content have nothing to do with each other. |
 
+### Hardware Object Properties
+
+| Name | Is Required | Value Type | Description |
+|---|---|---|---|
+| `id` | Yes | `enum` | The ID of the hardware vendor |
+| `link` | Yes | `string` | Link to run the demo on the vendor's hardware |
+| `logo` | Yes | `string` | The URI of the vendor's logo image, whether it be something hosted locally or on another site. |
+
 
 
 
@@ -202,7 +218,9 @@ The table below gives details about the fields in the metadata JSON file for ver
             "id": "",
             "weight": 1.0
         }
-    ]
+    ],
+    "relatedContent": [],
+    "hardware": []
 }
 ```
 

demonstrations_metadata.md

@@ -106,6 +106,13 @@
         "items": {
           "$ref": "file:./objects/related.content.schema.0.1.0.json"
         }
+      },
+      "hardware": {
+        "description": "An array of objects representing third-party vendors who can run the demo on their hardware. An empty array is allowed.",
+        "type": "array",
+        "items": {
+          "$ref": "file:./objects/hardware.schema.0.1.0.json"
+        }
       }
     },
     "required": [

metadata_schemas/demo.metadata.schema.0.1.0.json

@@ -0,0 +1,25 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "hardware.schema.0.1.0.json",
+  "title": "Hardware",
+  "description": "Hardware vendors that can run the demo on their hardware",
+  "type": "object",
+  "properties": {
+    "id": {
+      "description": "The ID of the hardware vendor",
+      "enum": ["aws"]
+    },
+    "link": {
+      "description": "Link to run the demo on the vendor's hardware",
+      "type": "string"
+    },
+    "logo": {
+      "description": "The URI of the vendor's logo image, whether it be something hosted locally or on another site.",
+      "type": "string",
+      "format": "uri-reference"
+  }
+  },
+  "required": [
+      "id", "link", "logo"
+  ]
+}