Updated API (markdown)

API.md

@@ -374,4 +374,9 @@ Rename a folder is an O(1) operation, even for folders with lots of files.
   ],
   "Subdirectories": null
 }
-```
+```
+
+# Delete a file
+```bash
+> curl -X DELETE "http://localhost:8888/assets/report.js"
+```