Typo.

source/Control_Flow_Statements.rst

@@ -69,16 +69,16 @@ implementation
       return the maximum value in a sequence 
       work only with integer or float
       """
-      higest = seq[0]
+      highest = seq[0]
       for i in seq:
          if i > highest:
              highest = i
       return highest
-      
+
    l = [1,2,3,4,58,9]
    print my_max(l)
    58
-   
+
 
 .. _enzyme_exercise: