Update tidb-cloud/features.md

Author: qiancai

tidb-cloud/features.md

@@ -35,7 +35,7 @@ This document lists the feature support status for different TiDB Cloud plans, i
     <td style="text-align:center;">✅</td>
   </tr>
   <tr>
-    <td>Data Migration (using the TiDB Cloud console)</td>
+    <td>Data migration (using the TiDB Cloud console)</td>
     <td style="text-align:center;">❌</td>
     <td style="text-align:center;">✅ <br/>(Private preview)</td>
     <td style="text-align:center;">✅</td>