Fix MD056 warnings

The following warnings are generated by using markdownlint analysis:
```
ipmi.md:41:23 MD056/table-column-count Table column count [Expected: 3; Actual: 2; Too few cells, row will be missing data]
ipmi.md:67:23 MD056/table-column-count Table column count [Expected: 3; Actual: 2; Too few cells, row will be missing data]
```

Signed-off-by: George Liu <liuxiwei@ieisystem.com>
Change-Id: I98ce5491c734793a32c4849b5282b9b6e3a4092c
diff --git a/ipmi.md b/ipmi.md
index fb3d181..bba7a1d 100644
--- a/ipmi.md
+++ b/ipmi.md
@@ -38,7 +38,7 @@
 | `03` | `oem2`       | `0xc2`                                                |
 | `04` | `padding`    | `0x00`                                                |
 | `05` | `SubCommand` | `Get or Set. Get == 0, Set == 1`                      |
-| `06` | `ZoneId`     |
+| `06` | `ZoneId`     |                                                       |
 | `07` | `Mode`       | `If Set, Value 1 == Manual Mode, 0 == Automatic Mode` |
 
 #### Response
@@ -64,7 +64,7 @@
 | `03` | `oem2`       | `0xc2`                             |
 | `04` | `padding`    | `0x00`                             |
 | `05` | `SubCommand` | `Get == 2`                         |
-| `06` | `ZoneId`     |
+| `06` | `ZoneId`     |                                    |
 
 #### Response