Add priviblur.pussthecat.org to the instances list (#39)

Author: syeopite

instances.md

@@ -5,6 +5,8 @@
 |[pb.bloat.cat](https://pb.bloat.cat)|https|Romania|No|No|
 |[tb.opnxng.com](https://tb.opnxng.com)|https|Singapore|No|No|
 |[priviblur.ducks.party](https://priviblur.ducks.party)|https|Germany|No|No|
+|[priviblur.pussthecat.org](https://priviblur.pussthecat.org)|https|Germany|No|No|
+
 ### Rules
   - Your instance must not be more than a month out of date compared with either the latest commit or latest release. 
   - If your instance is modified, you must disclose the source in some prominent way within Priviblur and clearly state that it has been modified