🐐 PER deconstructing

README.md

@@ -253,6 +253,19 @@ condition. Exit the loop with `ERVMPE` (or `REDI` from inside a function).
 > V
 ```
 
+Variables can be unpacked in `PER` loops, similar to `DESIGNA` destructuring:
+
+```
+PER a, b IN [[I, II], [III, IV]] FAC {
+  DIC(a + b)
+}
+```
+
+```
+> III
+> VII
+```
+
 ## Error handling
 
 Errors can be caught using `TEMPTA` (temptare = to try) and `CAPE` (capere = to catch). The `CAPE` block binds the error message to a variable as a string.