Update programming principles

iluwatar · iluwatar · commit 417f7b2c686d · 2019-10-05T14:07:32.000+03:00
diff --git a/programming-principles b/programming-principles
@@ -1 +1 @@
-Subproject commit 0b6db25cab685b2e0af9adde6552cb27182fb944
+Subproject commit f8b50558759f2f5011f1202622d3f82e2e6b0018
