feat(markdown): Work on backend docs

markdown/dev/reference/backend/api/patterns/clone/en.md

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+---
+title: Clone a Pattern
+---
+
+Create a new Pattern by cloning an existing one.
+
+## Access control
+
+The [Permission level](/reference/backend/api/rbac) required to clone a
+Pattern depends on:
+
+- Whether the Pattern is `public`
+- Who created the Pattern
+
+The details are outlined in the table below:
+
+|                  | Public Patterns | Non-Public Patterns |
+| ---------------: | :-------------: | :-----------------: |
+| **Your own**     | `0` or higher   | `4` or higher       |
+| **Other user's** | `0` or higher   | `5` or higher       |
+
+## Endpoints
+
+Creating a new API key is possible via these endpoints:
+
+| Method    | Path | Authentication |
+| --------: | :--- | :------------- |
+| <Method post /> | `/patterns/:id/clone/jwt` | [JSON Web Token](/reference/backend/api/authentication#jwt-authentication) |
+| <Method post /> | `/patterns/:id/clone/key` | [API Key & Secret](/reference/backend/api/authentication#key-authentication) |
+
+## Request url
+
+The url should contain the ID of the Pattern you wish to remove.
+It replaces the `:id` placeholder in the [endpoints listed above](#endpoints).
+
+## Response status codes
+
+Possible status codes for these endpoints are:
+
+| Status code | Description |
+| ----------: | :---------- |
+| <StatusCode status="200"/> | success |
+| <StatusCode status="400"/> | the request was malformed |
+| <StatusCode status="401"/> | the request lacks authentication |
+| <StatusCode status="403"/> | authentication failed |
+| <StatusCode status="500"/> | server error |
+
+<Note>
+If the status code is not <StatusCode status="200" /> the `error` property
+in the response body should indicate the nature of the problem.
+</Note>
+
+## Response body
+
+| Value               | Type     | Description |
+| ------------------- | -------- | ----------- |
+| `result`            | String | Either `success` or `error` |
+| `error`             | String | Will give info on the nature of the error. Only set if an error occured. |
+| `pattern.id`        | Number | The ID of the Pattern |
+| `pattern.createdAt` | String | Date string indicating the moment the pattern was created |
+| `pattern.data`      | Object | Any additional data that was stored with Pattern data |
+| `pattern.design`    | String | The name of the design of which this Pattern is an instance |
+| `pattern.img`       | String | The URL to the image stored with this Pattern |
+| `pattern.name`      | String | The name of the Pattern |
+| `pattern.notes`     | String | The notes stored with the Pattern |
+| `pattern.personId`  | Number | The ID of the Person for whom the Pattern was created |
+| `pattern.public`    | Boolean| Indicates whether the Pattern is publicly accessible or not |
+| `pattern.settings`  | Object | The settings used to (re-)create the Pattern |
+| `pattern.userId`    | Number | The ID of the user who created the Pattern |
+| `pattern.updatedAt` | String | Date string indicating the last time the pattern was updated |
+
+## Example request
+
+```js
+const apiKey = axios.post(
+  'https://backend.freesewing.org/patterns/10/clone/jwt',
+  null,
+  {
+    headers: {
+      Authorization: `Bearer ${token}`
+    }
+  }
+)
+```
+
+## Example response
+```200.json
+{
+  "result": "success",
+  "pattern": {
+    "id": 19,
+    "createdAt": "2022-11-19T16:29:33.346Z",
+    "data": {
+      "some": "value"
+    },
+    "design": "aaron",
+    "img": "https://cdn.sanity.io/images/hl5bw8cj/production/a1565c8c6c70cfe7ea0fdf5c65501cd885adbe78-200x187.png",
+    "name": "Just a test",
+    "notes": "These are my notes",
+    "personId": 17,
+    "public": true,
+    "settings": {
+      "sa": 5
+    },
+    "userId": 10,
+    "updatedAt": "2022-11-19T16:29:33.346Z"
+  }
+}
+```
+