[DOCS] Edit some operation summaries (#3222)

Author: lcawl

output/openapi/elasticsearch-openapi.json

@@ -24,6 +24,8 @@ import { QueryContainer } from '@_types/query_dsl/abstractions'
 import { Operator } from '@_types/query_dsl/Operator'
 
 /**
+ * Count search results.
+ * Get the number of documents matching a query.
  * @rest_spec_name count
  * @availability stack stability=stable
  * @availability serverless stability=stable visibility=public

output/openapi/elasticsearch-serverless-openapi.json

@@ -21,7 +21,8 @@ import { RequestBase } from '@_types/Base'
 import { Name } from '@_types/common'
 
 /**
- * Creates the enrich index for an existing enrich policy.
+ * Run an enrich policy.
+ * Create the enrich index for an existing enrich policy.
  * @doc_id execute-enrich-policy-api
  * @rest_spec_name enrich.execute_policy
  * @availability stack since=7.5.0 stability=stable

output/schema/schema.json

@@ -22,6 +22,8 @@ import { Name } from '@_types/common'
 import { Duration } from '@_types/Time'
 
 /**
+ * Check index templates.
+ * Check whether index templates exist.
  * @rest_spec_name indices.exists_index_template
  * @availability stack stability=stable
  * @availability serverless stability=stable visibility=public

specification/_global/count/CountRequest.ts

@@ -21,7 +21,8 @@ import { RequestBase } from '@_types/Base'
 import { ExpandWildcards, Names } from '@_types/common'
 
 /**
- * Resolves the specified name(s) and/or index patterns for indices, aliases, and data streams.
+ * Resolve indices.
+ * Resolve the names and/or index patterns for indices, aliases, and data streams.
  * Multiple patterns and remote clusters are supported.
  * @rest_spec_name indices.resolve_index
  * @availability stack since=7.9.0 stability=stable