Merge pull request astaxie#333 from sxmad/master

Update 02.6.md

Author: astaxie

ebook/02.6.md

@@ -142,7 +142,7 @@ interface类型定义了一组方法，如果某个对象实现了某个接口
 		mike := Student{Human{"Mike", 25, "222-222-XXX"}, "MIT", 0.00}
 		paul := Student{Human{"Paul", 26, "111-222-XXX"}, "Harvard", 100}
 		sam := Employee{Human{"Sam", 36, "444-222-XXX"}, "Golang Inc.", 1000}
-		Tom := Employee{Human{"Sam", 36, "444-222-XXX"}, "Things Ltd.", 5000}
+		Tom := Employee{Human{"Tom", 37, "222-444-XXX"}, "Things Ltd.", 5000}
 
 		//定义Men类型的变量i
 		var i Men