Updated at_cache (markdown)

at_cache.md

@@ -5,10 +5,14 @@ The @cache decorator can be import with.
 from functools import cache
 
 @cache
-def some_loop_function():
+def some_loop_function(iterations = 1000):
   mod25 = []
-  for i in range(1000):
+  for i in range(iterations):
     if i%25:
       mod25.append(i)
   return mod25
+
+if __name__ == "__main__":
+  some_loop_function()
+  some_loop_function(1200)
 ```