runtime(tutor): small fixes to the zh tutor (#14081)

dragonish <no.web.developer@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/tutor/tutor.zh.euc b/runtime/tutor/tutor.zh.euc
index 16a031a..5cdf21c 100644
--- a/runtime/tutor/tutor.zh.euc
+++ b/runtime/tutor/tutor.zh.euc
@@ -905,7 +905,7 @@
 
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+  3. ÏÖÔÚÊäÈëÒ»¸öÃüÁîµÄÆðʼ²¿·Ö£¬ÀýÈçÊäÈ룺 :e
 
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