Fixed more errors in ReadMe

Author: andreas-aeschlimann

README.md

@@ -487,15 +487,15 @@ The default is `PropertyMatchingRule.CASE_STRICT`.
 
 #### Serializing (TypeScript to JSON)
 
-`(any) serialize(data: any)`
+`(any) serialize(data: T | T[])`
 
 Tries to serialize a TypeScript object or array of objects to JSON.
 
 > Tip: The return value is not a string. In case you need a string as result, use `JSON.stringify()` after calling the serialize method.
 
 #### Deserializing (JSON to TypeScript)
 
-`(any) deserialize(json: any, classReference: { new(): T | T[] })`
+`(T | T[]) deserialize(json: any, classReference: { new(): T | T[] })`
 
 Tries to deserialize given JSON to a TypeScript object or array of objects.