Update object-attribute-reference.md

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docs/object-attribute-reference.md

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 # Object Attribute Reference
 ## List all preset object attributes
 
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 | Attribute         | Type      | Value | Description |
 |-------------------|-----------|-------|-------------|
-| `xp`              | function  | A valid function to calculate experience points, such as `exerciceExpCalculation`, `examExpCalculation` or `raidExpCalculation` | This attribute define via a function the amount of exeperience points that an object will give. |
-| `correctionPrice` | function | A valid function to calculate the amount of correction points needed to text a result, such as `correctionPrice` | This attribute define via a function the amount of correction points needed to test an exercise. |
+| `xp`              | function  | `exerciceExpCalculation`, `examExpCalculation` or `raidExpCalculation` | Amount of exeperience points that an object will give. |
+| `correctionPrice` | function  | `correctionPrice` | Amount of correction points needed to test an exercise. |
 | `scopeStart`      | function  | | |
 | `scopeEnd`        | function  | | |
 | `startDay`        | function  | | |