Update query-dsl.asciidoc
[partintro]
--
-Elasticsearch provides a full Query DSL based on JSON to define queries.
-Think of the Query DSL as an AST of queries, consisting of two types of
+Elasticsearch provides a full Query DSL (Domain Specific Language) based on JSON to define queries.
+Think of the Query DSL as an AST (Abstract Syntax Tree) of queries, consisting of two types of
clauses:
Leaf query clauses::
