docs: add reasoning and webSearches to Response Types table

Author: erezcor

docs/fixtures.html

@@ -146,7 +146,7 @@ <h2>Response Types</h2>
           <tbody>
             <tr>
               <td>Text</td>
-              <td>content, role?, finishReason?</td>
+              <td>content, role?, finishReason?, reasoning?, webSearches?</td>
               <td>Plain text response</td>
             </tr>
             <tr>