Add note for Developers

correct version in README.md

FOR_DEVELOPERS.md

@@ -0,0 +1,14 @@
+# Developer's guide
+
+- [How to update release](#how-to-update-release-version)
+- [How to update release package](#how-to-update-release-package)
+
+### How to update release version
+
+Update line VERSION = "4.0.2"
+in Makefile file
+launch make fixversions in an linux shell
+This will update all xml versions (package/component/plugins)
+
+### How to update release package
+

README.md

@@ -1,4 +1,4 @@
-# attachments 4.0.2
+# attachments 4.0.3
 
 ## Quick Start
 
@@ -20,7 +20,7 @@ Joomla 4.0+ compatible also with Joomla 5.0+
 - Add a hint if no extensions are allowed due to joomla upgrade
 - Fix Deprecated: explode() when upload a file (FE) [#64](/../../issues/64)
 - Allow plugins to be loaded from cli. Fixes [#61](/../../issues/61)
-- Merge pull request [#60](/../../pull/50) from mckillo/master
+- Merge pull request [#60](/../../pull/60) from mckillo/master
   Some small fix about install, string, datetime, deprecated
 
 ## Changes since version 4.0.1