Fix the links

They were being forced to use Windows style slashes and a full path when I ran `yarn lint-staged`

Author: NeillM

docs/apis/core/reportbuilder/index.md

@@ -474,7 +474,7 @@ public function get_default_conditions(): array {
 }
 ```
 
-You may also optionally define the [initial values for any of the default conditions](.\filtering.md) by overriding the `get_default_condition_values()` method.
+You may also optionally define the [initial values for any of the default conditions](./filtering.md) by overriding the `get_default_condition_values()` method.
 
 ```php
 /**

versioned_docs/version-4.3/apis/core/reportbuilder/index.md

@@ -447,7 +447,7 @@ public function get_default_conditions(): array {
 }
 ```
 
-You may also optionally define the [initial values for any of the default conditions](.\filtering.md) by overriding the `get_default_condition_values()` method.
+You may also optionally define the [initial values for any of the default conditions](./filtering.md) by overriding the `get_default_condition_values()` method.
 
 ```php
 /**

versioned_docs/version-4.4/apis/core/reportbuilder/index.md

@@ -479,7 +479,7 @@ public function get_default_conditions(): array {
 }
 ```
 
-You may also optionally define the [initial values for any of the default conditions](.\filtering.md) by overriding the `get_default_condition_values()` method.
+You may also optionally define the [initial values for any of the default conditions](./filtering.md) by overriding the `get_default_condition_values()` method.
 
 ```php
 /**

versioned_docs/version-4.5/apis/core/reportbuilder/index.md

@@ -462,7 +462,7 @@ public function get_default_conditions(): array {
 }
 ```
 
-You may also optionally define the [initial values for any of the default conditions](.\filtering.md) by overriding the `get_default_condition_values()` method.
+You may also optionally define the [initial values for any of the default conditions](./filtering.md) by overriding the `get_default_condition_values()` method.
 
 ```php
 /**