Add related learning directive to four pages

manage-data/data-store/index-basics.md

@@ -135,4 +135,7 @@ Now that you understand index fundamentals, explore these pages for hands-on tas
 * [](/manage-data/data-store/templates.md): Create and manage index templates and component templates.
 * [](/manage-data/data-store/data-streams/manage-data-stream.md): Create, monitor, and manage data streams and their backing indices.
 * [](/manage-data/ingest/transform-enrich/data-enrichment.md): Set up enrich policies to add data from existing indices to incoming documents.
-* [](/manage-data/data-store/manage-data-from-the-command-line.md): Index, update, retrieve, search, and delete documents using the {{es}} REST API.
+* [](/manage-data/data-store/manage-data-from-the-command-line.md): Index, update, retrieve, search, and delete documents using the {{es}} REST API.
+
+:::{related-learning} index-basics
+:::

manage-data/data-store/mapping.md

@@ -104,3 +104,6 @@ Defining too many fields in an index can lead to a mapping explosion, which can
 Consider a situation where every new document inserted introduces new fields, such as with [dynamic mapping](/manage-data/data-store/mapping/dynamic-mapping.md). Each new field is added to the index mapping, which can become a problem as the mapping grows.
 
 Use the [mapping limit settings](elasticsearch://reference/elasticsearch/index-settings/mapping-limit.md) to limit the number of field mappings (created manually or dynamically) and prevent documents from causing a mapping explosion.
+
+:::{related-learning} data-types-and-mappings
+:::

reference/fleet/index.md

@@ -151,3 +151,6 @@ Want to get up and running with {{fleet}} and {{agent}} quickly? Read our gettin
 
 * [Get started with logs and metrics](/solutions/observability/infra-and-hosts/get-started-with-system-metrics.md)
 * [Get started with APM](/solutions/observability/apm/get-started.md)
+
+:::{related-learning} elastic-agent
+:::

solutions/observability/apm/index.md

@@ -26,4 +26,7 @@ Metrics are another vital source of information when debugging production system
 
 ## Give Elastic APM a try [give_elastic_apm_a_try]
 
-Want to quickly spin up an APM deployment? Refer to [Get started for APM](/solutions/observability/apm/get-started.md). We recommend using [{{edot}}](/solutions/observability/apm/opentelemetry/index.md) to collect application telemetry data. To host everything yourself instead, refer to [Set up APM Server](/solutions/observability/apm/apm-server/setup.md).
+Want to quickly spin up an APM deployment? Refer to [Get started for APM](/solutions/observability/apm/get-started.md). We recommend using [{{edot}}](/solutions/observability/apm/opentelemetry/index.md) to collect application telemetry data. To host everything yourself instead, refer to [Set up APM Server](/solutions/observability/apm/apm-server/setup.md).
+
+:::{related-learning} apm-with-elastic
+:::