Update CHANGELOG.md (#676)

Author: AlexVanderbist

CHANGELOG.md

@@ -8,7 +8,7 @@ All notable changes to `laravel-query-builder` will be documented in this file
 - includes will no longer be automatically camel-cased to match a relationship name
 - fields will no longer be automatically snake-cased to match table or column names
 
-Take a look at the (upgrade guide)[./UPGRADING.md] for a more detailed explanation.
+Take a look at the [upgrade guide](./UPGRADING.md) for a more detailed explanation.
 
 ## 3.6.0 - 2021-09-06