updated readme to include preview of cenezo theme

README.md

@@ -2,6 +2,8 @@
 
 lain themed custom json files for pleroma frontend. pictures included have their own copyrights
 
+##
+![screenshot of cenezo](https://git.lain.church/vala/pleroma-lain-themes/raw/branch/master/cenezo.jpg)
 ## lain-battlestation
 ![screenshot of lain-battlestation](https://git.lain.church/vala/pleroma-lain-themes/raw/branch/master/lain_battlestation.png)
 two alternatives when it comes to background. one has tenshi eating a corndog on the monitor, while the other doesnt have it.