1. `header="..."` parameter
-Use the header paramter to specify the header of a search result. It should correspond to the format of the format parameter. This parameter is optional. <br /> Example: `header="| *Topic:* | *Summary:* |"`
+Use the header parameter to specify the header of a search result. It should correspond to the format of the format parameter. This parameter is optional. <br /> Example: `header="| *Topic:* | *Summary:* |"`
2. `format="..."` parameter