Update README.md

Author: null0verflow

README.md

@@ -1,14 +1,12 @@
 # PiGen
 
-**_duplicates 0000 4 times_**
-
 PIN Generator
 
 Generate all possible combinations of PIN with batch file and only with batch ( 4 digits code)
 
 In the future, i will create new batch file (not this) which will generate all possible combinations alphabet, numeric, special characters password, customize length.
 
-This is a pre-release version ( ver 5.0.3 - Service Unavailable )
+This is a officail release version ( ver 5.1.1 - Network Authentication Required )
 
 ## how to use
 
@@ -20,4 +18,18 @@ _Why?_
 
 remeber to feedback.
 
-read more, visit index.md or visit this website [here](https://bobdinh139.github.io/PiGen/)  (located on /docs/ folder).
+read more, visit index.md or visit this website [here](https://bobdinh139.github.io/PiGen/)  (located on /docs/ folder). (if you jusst want to read more or want to know how this works)
+
+## Older versions:
+
+_Alpha_
+
+located at /alphaver/
+
+_beta_
+
+located at /beta/
+
+**_all read me and explain for each version included_**
+
+## Changelog available @changlog.md