Merge pull request #607 from Yancey1989/fix_cn_readme

fix typo in fit-a-line readme.cn

01.fit_a_line/README.cn.md

@@ -267,7 +267,7 @@ for idx, val in enumerate(results[0]):
     print("%d: %.2f" % (idx, val))
 
 print("\nground truth:")
-for idx, val in enumerate(test_label):
+for idx, val in enumerate(test_y):
     print("%d: %.2f" % (idx, val))
 ```
 

01.fit_a_line/index.cn.html

@@ -309,7 +309,7 @@ for idx, val in enumerate(results[0]):
     print("%d: %.2f" % (idx, val))
 
 print("\nground truth:")
-for idx, val in enumerate(test_label):
+for idx, val in enumerate(test_y):
     print("%d: %.2f" % (idx, val))
 ```