refactor: 🚚 Make paths under /entities use the singular form

app/entities/delete/page.mdx

@@ -0,0 +1,48 @@
+export const metadata = {
+    title: 'Delete',
+    description: 'Deletes are used to remove entities from the system',
+}
+
+# Delete
+
+Signals the deletion of an entity. {{ className: 'lead' }}
+
+## Authorization
+
+Implementations **must** ensure that the author of the `Delete` entity has the authorization to delete the target entity.
+
+Having the authorization is defined as:
+- The author is the creator of the target entity (including [delegation](/delegation)).
+- The author is the server actor.
+
+## Entity Definition
+
+<Row>
+    <Col>
+        <Properties>
+            <Property name="uri" type="null" required={false}>
+                This entity does not have a URI.
+            </Property>
+            <Property name="author" type="URI" required={true} typeLink="/types#uri">
+                URI of the `User` who is deleting the entity.
+            </Property>
+            <Property name="target" type="URI" required={true} typeLink="/types#uri">
+                URI of the entity being deleted.
+            </Property>
+        </Properties>
+    </Col>
+
+    <Col sticky>
+
+    ```jsonc {{ title: 'Example Delete' }}
+    {
+        "type": "Delete",
+        "id": "9b3212b8-529c-435a-8798-09ebbc17ca74",
+        "created_at": "2021-01-01T00:00:00.000Z",
+        "author": "https://example.com/users/6e0204a2-746c-4972-8602-c4f37fc63bbe",
+        "deleted": "https://example.com/notes/02e1e3b2-cb1f-4e4a-b82e-98866bee5de7"
+    }
+    ```
+
+    </Col>
+</Row>