[DOCS] Adds links to rules overview

Author: lcawl

x-pack/docs/en/ml/detector-custom-rules.asciidoc

@@ -2,9 +2,8 @@
 [[ml-configuring-detector-custom-rules]]
 === Customizing detectors with rules and filters
 
-Rules and filters enable you to change the behavior of anomaly detectors based 
-on domain-specific knowledge.
-//TO-DO: Add link to rules overview page
+<<ml-rules,Rules and filters>> enable you to change the behavior of anomaly 
+detectors based on domain-specific knowledge.
 
 Rules describe _when_ a detector should take a certain _action_ instead
 of following its default behavior. To specify the _when_ a rule uses

x-pack/docs/en/rest-api/ml/delete-filter.asciidoc

@@ -15,7 +15,7 @@ Deletes a filter.
 
 ==== Description
 
-This API deletes a filter. 
+This API deletes a {stack-ov}/ml-rules.html[filter]. 
 If a {ml} job references the filter, you cannot delete the filter. You must 
 update or delete the job before you can delete the filter.
 

x-pack/docs/en/rest-api/ml/filterresource.asciidoc

@@ -12,3 +12,5 @@ A filter resource has the following properties:
 
 `items`::
   (array of strings) An array of strings which is the filter item list.
+  
+For more information, see {stack-ov}/ml-rules.html[Machine learning rules and filters].

x-pack/docs/en/rest-api/ml/get-filter.asciidoc

@@ -17,7 +17,8 @@ Retrieves filters.
 
 ===== Description
 
-You can get a single filter or all filters.
+You can get a single filter or all filters. For more information, see 
+{stack-ov}/ml-rules.html[Machine learning rules and filters].
 
 
 ==== Path Parameters

x-pack/docs/en/rest-api/ml/jobresource.asciidoc

@@ -417,8 +417,8 @@ For more information, see
 [[ml-detector-custom-rule]]
 ==== Detector Custom Rule
 
-Custom rules enable you to customize the way detectors operate.
-//TO-DO: Add link to rules overview
+{stack-ov}/ml-rules.html[Custom rules] enable you to customize the way detectors 
+operate. 
 
 A rule has the following properties:
 

x-pack/docs/en/rest-api/ml/put-filter.asciidoc

@@ -13,7 +13,7 @@ Instantiates a filter.
 
 ===== Description
 
-A filter contains a list of strings. 
+A {stack-ov}/ml-rules.html[filter] contains a list of strings. 
 It can be used by one or more jobs. Specifically, filters are referenced in 
 the `custom_rules` property of <<ml-detectorconfig,detector configuration objects>>.