Update ReadMe.md

Author: algo26-matthias

ReadMe.md

@@ -2,7 +2,7 @@
 
 This repository is an archive snapshot of the latest release of phlyMail Free,
 an open-source Webmail and PIM solution.
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+Please note, that I cannot provide you with any support, this piece of software is now fairly outdated.
 
 ## Installation guide phlyMail Free