Update 'README.md'

2019-10-03 11:31:51 +02:00 · 2019-10-03 11:31:51 +02:00 · da17c44130
--- a/README.md
+++ b/README.md
@ -16,6 +16,8 @@ git clone https://git.inhji.de/inhji/dotfiles.git .dotfiles
 chsh -s /usr/bin/zsh
 ```

+After that, read [POSTINSTALL](POSTINSTALL.md)
+
 Tips
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