Update search-indexer-field-mappings.md

Updating broken link

Author: gmndrg

articles/search/search-indexer-field-mappings.md

@@ -30,7 +30,7 @@ Field mappings apply to:
 
 + Physical data structures on both sides of the data path. Logical data structures created by skills reside only in memory. Use [outputFieldMappings](cognitive-search-output-field-mapping.md) to map in-memory nodes to output fields in a search index.
 
-+ Parent AI Search indexes only. For "secondary" indexes with "child" documents or "chunks", refer to the [advanced field mapping scenarios](advancedFieldMappingScenarios).
++ Parent AI Search indexes only. For "secondary" indexes with "child" documents or "chunks", refer to the [advanced field mapping scenarios](#advancedFieldMappingScenarios).
 
 + Top-level search fields only, where the `targetFieldName` is either a simple field or a collection. A target field can't be a complex type.