fix: table alignment (#5151)

Small Alignment correction

src/data/roadmaps/sql/content/104-aggregate-queries/101-sum.md

@@ -14,10 +14,10 @@ For example, consider the following `ORDER` table:
 
 ```
 |   OrderID  | Company | Quantity |
-|-------------|-----------|----------|
+|------------|---------|----------|
-|     1           |     A     |    30     |
+|     1      |     A   |    30    |
-|     2           |     B     |    15     |
+|     2      |     B   |    15    |
-|     3           |     A     |    20     |
+|     3      |     A   |    20    |
 ```
 
 If you want to find the total quantity, you can use `SUM()`:
@@ -30,8 +30,8 @@ Output will be:
 
 ```
 | TotalQuantity |
-|----------------|
+|---------------|
-|           65     |
+|       65      |
 ```
 
 **Note:** The `SUM()` function skips NULL values.