add API documentation

doc/api/issues.md

@@ -964,3 +964,28 @@ Example response:
 ## Comments on issues
 
 Comments are done via the [notes](notes.md) resource.
+
+## Get user agent details
+
+```
+GET /projects/:id/issues/:issue_iid/user_agent_detail
+```
+
+| Attribute   | Type    | Required | Description                          |
+|-------------|---------|----------|--------------------------------------|
+| `id`        | integer/string | yes      | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user  |
+| `issue_iid` | integer | yes      | The internal ID of a project's issue |
+
+```bash
+curl --request GET --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/issues/93/user_agent_detail
+```
+
+Example response:
+
+```json
+{
+  "user_agent": "AppleWebKit/537.36",
+  "ip_address": "127.0.0.1",
+  "submitted": false,
+}
+```

doc/api/snippets.md

@@ -234,3 +234,27 @@ Example response:
     }
 ]
 ```
+
+## Get user agent details
+
+```
+GET /snippets/:id/user_agent_detail
+```
+
+| Attribute   | Type    | Required | Description                          |
+|-------------|---------|----------|--------------------------------------|
+| `id`        | Integer | yes      | The ID of a snippet                  |
+
+```bash
+curl --request GET --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/snippets/1/user_agent_detail
+```
+
+Example response:
+
+```json
+{
+  "user_agent": "AppleWebKit/537.36",
+  "ip_address": "127.0.0.1",
+  "submitted": false,
+}
+```