Merge pull request #726 from LabelZhou/master

fix: Incorrect documentation example type when the return type is "void"

src/main/java/com/ly/doc/utils/DocUtil.java

@@ -146,7 +146,7 @@ public static String jsonValueByType(String typeName) {
         }
         if (javaPrimaryType(type)) {
             return value;
-        } else if ("Void".equals(type)) {
+        } else if ("Void".equalsIgnoreCase(type)) {
             return "null";
         } else {
             return "\"" + value + "\"";