docs: fix QUERY documentation and add gin.MethodQuery example

docs/doc.md

@@ -7,6 +7,7 @@
   - [Build without MsgPack rendering feature](#build-without-msgpack-rendering-feature)
 - [Routing](#routing)
   - [Using GET, POST, PUT, PATCH, QUERY, DELETE and OPTIONS](#using-get-post-put-patch-delete-query-and-options)
+  - [QUERY Method (RFC 10008)](#query-method-rfc-10008)
   - [Parameters in path](#parameters-in-path)
   - [Querystring parameters](#querystring-parameters)
   - [Multipart/Urlencoded Form](#multiparturlencoded-form)
@@ -127,7 +128,7 @@ func main() {
   router.PUT("/somePut", putting)
   router.DELETE("/someDelete", deleting)
   router.PATCH("/somePatch", patching)
-  router.QUERY("/somePatch", querying)
+  router.QUERY("/someQuery", querying)
   router.HEAD("/someHead", head)
   router.OPTIONS("/someOptions", options)
 
@@ -137,6 +138,19 @@ func main() {
   // router.Run(":3000") for a hard coded port
 }
 ```
+### QUERY Method (RFC 10008)
+
+Gin supports the HTTP `QUERY` method defined by RFC 10008.
+
+```go
+router.QUERY("/search", querying)
+```
+
+The exported `gin.MethodQuery` constant can be used wherever an HTTP method is required, such as when constructing requests:
+
+```go
+req := httptest.NewRequest(gin.MethodQuery, "/query", nil)
+```
 
 ### Parameters in path