[DOCS] Rewrite compound queries overview

docs/reference/query-dsl/compound-queries.asciidoc

@@ -1,36 +1,41 @@
 [[compound-queries]]
 == Compound queries
 
-Compound queries wrap other compound or leaf queries, either to combine their
-results and scores, to change their behaviour, or to switch from query to
-filter context.
+**Compound queries** wrap other queries so you can:
 
-The queries in this group are:
+* Combine multiple queries.
+
+* Customize search results and <<relevance-scores,relevance scores>>.
+
+* Run queries in a <<query-filter-context,filter context>> to improve
+speed and performance.
+
+[float]
+[[compound-query-types]]
+=== Compound query types
 
 <<query-dsl-bool-query,`bool` query>>::
-The default query for combining multiple leaf or compound query clauses, as
-`must`, `should`, `must_not`, or `filter` clauses.  The `must` and `should`
-clauses have their scores combined -- the more matching clauses, the better --
-while the `must_not` and `filter` clauses are executed in filter context.
+Returns documents matching one or more wrapped queries using `and`, `or`, and
+`not` logic.
 
 <<query-dsl-boosting-query,`boosting` query>>::
-Return documents which match a `positive` query, but reduce the score of
-documents which also match a `negative` query.
+Returns documents matching a `positive` query while reducing the relevance score
+of documents that also match a `negative` query.
 
 <<query-dsl-constant-score-query,`constant_score` query>>::
-A query which wraps another query, but executes it in filter context.  All
-matching documents are given the same ``constant'' `_score`.
+Wraps a <<query-dsl-bool-query, filter query>> and assigns every returned
+document the same relevance score.
 
 <<query-dsl-dis-max-query,`dis_max` query>>::
-A query which accepts multiple queries, and returns any documents which match
-any of the query clauses.  While the `bool` query combines the scores from all
-matching queries, the `dis_max` query uses the score of the single best-
-matching query clause.
+Returns documents matching one or more wrapped queries. If a returned document
+matches more than one of these queries, the `dis_max` query assigns the document
+the highest relevance score from any matching query, plus a tie breaking
+increment for any additional matching subqueries.
 
 <<query-dsl-function-score-query,`function_score` query>>::
-Modify the scores returned by the main query with functions to take into
-account factors like popularity, recency, distance, or custom algorithms
-implemented with scripting.
+Changes the relevance scores of documents returned by a wrapped query. You can
+use the `function_score` query to incorporate factors like popularity, recency,
+distance, or custom algorithms into your search results.
 
 
 include::bool-query.asciidoc[]