Add JSON query parameter explanation in the docs

doc/endpoint/json.md

@@ -3,7 +3,7 @@
 Json values are supported through codecs, which encode/decode values to json strings. Most often, you'll be using a
 third-party library to perform the actual json parsing/printing. See below for the list of supported libraries. 
 
-All the integrations, when imported into scope, define a `jsonBody[T]` method. 
+All the integrations, when imported into scope, define `jsonBody[T]` and `jsonQuery[T]` methods. 
 
 Instead of providing the json codec as an implicit value, this method depends on library-specific implicits being in 
 scope, and basing on these values creates a json codec. The derivation also requires 
@@ -272,7 +272,22 @@ have different defaults when it comes to a discrimination strategy, so in order
 documentation) in sync with how the values are serialised, you will have to configure schema derivation as well.
 
 Schemas are referenced at the point of `jsonBody` usage, so any configuration must be available in the implicit scope
-when this method is called.
+when these methods are called.
+
+## JSON query parameters
+
+You can specify query parameters in JSON format by using the `jsonQuery` method. For example, using Circe:
+
+```scala mdoc:compile-only
+import sttp.tapir._
+import sttp.tapir.json.circe._
+import sttp.tapir.generic.auto._
+import io.circe.generic.auto._
+
+case class Book(author: String, title: String, year: Int)
+
+val bookQuery: EndpointInput.Query[Book] = jsonQuery[Book]("book")
+```
 
 ## Next
 

docs/openapi-docs/src/test/scalajvm/sttp/tapir/docs/openapi/VerifyYamlTest.scala

@@ -787,7 +787,7 @@ class VerifyYamlTest extends AnyFunSuite with Matchers {
     val codec = Codec.listHead(Codec.json[String](DecodeResult.Value(_))(identity))
     val actualYaml = OpenAPIDocsInterpreter()
       .toOpenAPI(
-        endpoint.post.in(anyQuery[String, CodecFormat.Json]("name", codec).example("alan").default("tom")),
+        endpoint.post.in(queryAnyFormat[String, CodecFormat.Json]("name", codec).example("alan").default("tom")),
         Info("Entities", "1.0")
       )
       .toYaml