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     |
-|     2           |     B     |    15     |
-|     3           |     A     |    20     |
+|------------|---------|----------|
+|     1      |     A   |    30    |
+|     2      |     B   |    15    |
+|     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.
@@ -55,4 +55,4 @@ This will give us the sum of `Quantity` for each `Company` in the `Order` table.
 |     B     |           15     |
 ```
 
-Notably, in all databases, including MySQL, PostgreSQL, and SQLite, the `SUM()` function operates the same way.
+Notably, in all databases, including MySQL, PostgreSQL, and SQLite, the `SUM()` function operates the same way.