minor typo fix

rajudev · web-flow · commit 273036a40500 · 2018-11-07T15:52:22.000+05:30
correct spelling of the word builtin
diff --git a/docs/looping.rst b/docs/looping.rst
@@ -367,7 +367,7 @@ We can also do things like
 range() function
 ================
 
-range() is a buitin class. From the help document
+range() is a builtin class. From the help document
 
 ::
 
