example of iota

#57

README.md

@@ -123,6 +123,17 @@ var foo, bar int = 42, 1302 // declare and init multiple vars at once
 var foo = 42 // type omitted, will be inferred
 foo := 42 // shorthand, only in func bodies, omit var keyword, type is always implicit
 const constant = "This is a constant"
+
+// iota can be used for incrementing numbers, starting from 0
+const (
+    _ = iota
+    a
+    b
+    c = 1 << iota
+    d
+)
+    fmt.Println(a, b) // 1 2 (0 is skipped)
+    fmt.Println(c, d) // 8 16 (2^3, 2^4)
 ```
 
 ## Functions