Update versions.md

versions.md

@@ -2,6 +2,8 @@
 
 #### The release version 2.0 System and related components (kernel, firmware, etc.) Latest version:
 
+---
+
 #### 系统（ System ）：
 
 **2021-01-02/3-v2020-2.0-U6-Release** (kernelVer:**5.4.83-OPENFANS+20210102-v8**) ;
@@ -12,12 +14,10 @@
 
 **2020-03-25-2.0-U6 5.10.25-Release-OPENFANS+20210325-v8** ( **建议更新 - Suggested to upgrade** )
 
----
-
-*注意：U3(含)之后的固件不支持从 版本<=U2(包含在内)升级!!*
-
-*Note: Fimware >=U3, >=U4 do not support upgrade from version <=U2(include) !!*
-
+```
+注意：U3(含)之后的固件不支持从 版本<=U2(包含在内)升级!!*
+Note: Fimware >=U3, >=U4 do not support upgrade from version <=U2(include) !!*
+```
 ----
 
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