Fix start date in 1567

xzmeng · xzmeng · commit c40121ff9d9e · 2023-08-14T05:20:13.000+08:00
diff --git a/text/1567-long-error-codes-explanation-normalization.md b/text/1567-long-error-codes-explanation-normalization.md
@@ -1,5 +1,5 @@
 
-Start Date: 2016-01-04
+- Start Date: 2016-01-04
 
 - RFC PR: [rust-lang/rfcs#1567](https://github.com/rust-lang/rfcs/pull/1567)
 - Rust Issue: N/A
