Update README.md

Author: fix2015

README.md

@@ -28,9 +28,9 @@ npx interview-questions [options]
 | `--filter`      | Filter questions by type (`all`, `top`). Default is `all`.        | `--filter top`                         |
 | `--amount`      | Number of questions to retrieve (for `top` filter).               | `--amount 5`                           |
 | `--level`       | Filter by difficulty level (`basic`, `intermediate`, `advanced`). | `--level basic`                        |
-| `--theme`       | Filter by difficulty level                                        |                                        |
-|                 |    ( closures | storage | es6 | classes                           |                                        |
-|                 |    database ... and other 203 themes).                            | `--theme es6`                          |
+| `--theme`       | Filter by difficulty level                                        | `--theme es6`                          |
+|                 |    ( closures , storage , es6 , classes                           |                                        |
+|                 |    database ... and other 203 themes).                            |                                        |
 | `--format`      | Output format (`text`, `array`, `json`). Default is `text`.       | `--format json`                        |
 
 ### Examples