Make table shows better

Author: reyoung

doc/design/releasing_process/03.regression_test_list.md

@@ -7,12 +7,12 @@
 Paddle每次发版本首先要保证Paddle Book中所有章节功能的正确性。功能的正确性包括验证Paddle目前的`paddle_trainer`训练和纯使用`Python`训练模型正确性。
 
 | | 新手入门章节 | 识别数字 | 图像分类 | 词向量 | 情感分析 | 语意角色标注 | 机器翻译 | 个性化推荐 |
-| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
-| API.V2 + Docker + GPU  |
-| API.V2 + Docker + CPU  |
-| `paddle_trainer` + Docker + GPU | 
-| `paddle_trainer` + Docker + CPU |
-| API.V2 + Ubuntu + GPU |
-| API.V2 + Ubuntu + CPU |
-| `paddle_trainer` + Ubuntu + GPU |
-| `paddle_trainer` + Ubuntu + CPU |
+| --- | --- | --- | --- | --- | --- | --- | --- | --- |
+| API.V2 + Docker + GPU  |  |  |  |  |  |  |  |  |
+| API.V2 + Docker + CPU  |  |  |  |  |  |  |  |  |
+| `paddle_trainer` + Docker + GPU |  |  |  |  |  |  |  |  |
+| `paddle_trainer` + Docker + CPU |  |  |  |  |  |  |  |  |
+| API.V2 + Ubuntu + GPU |  |  |  |  |  |  |  |  |
+| API.V2 + Ubuntu + CPU |  |  |  |  |  |  |  |  |
+| `paddle_trainer` + Ubuntu + GPU |  |  |  |  |  |  |  |  |
+| `paddle_trainer` + Ubuntu + CPU |  |  |  |  |  |  |  |  |