Update readme.txt

Author: arnabwahid

readme.txt

@@ -44,7 +44,7 @@ Source: https://github.com/octopress/classic-theme
 
 == Changelog ==
 
-Version 2.0.0 (2019-03-01)
+Version 2.0.0 (2019-03-01) [Public release]
 -------------------------
 - Fixed the pagination not working on blog pages
 - Custom 404 page
@@ -53,4 +53,4 @@ Version 2.0.0 (2019-03-01)
 - Removed changelog.txt
 
 Version 1.0
--------------------------
+-------------------------