Update docs.md (#257)

Add missing double quote

pages/docs/docs.md

@@ -518,7 +518,7 @@ host()                                  // host as string
 
 queryParam("name")                      // query param by name as string
 queryParamAsClass("name", clazz)        // query param parameter by name, as validator typed as specified class
-queryParams("name)                      // list of query parameters by name
+queryParams("name")                     // list of query parameters by name
 queryParamMap()                         // map of all query parameters
 queryString()                           // full query string