Update issue template

Author: RingoD

ISSUE_TEMPLATE.md

@@ -4,37 +4,29 @@
 
 
 
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 ### The version of WCDB
 
 > e.g. v1.0.5
 
 
 
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 ### The platform of WCDB
 
 > e.g. iOS, macOS or Android
 
 
 
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 ### The installation of WCDB
 
 > e.g. Cocoapods, Carthage, Maven, AAR Package or Git clone
 
 
 
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 ### What's the issue?
 
-> Please post the outputs or screenshots for an error.
->
-> Please explain what you want by example or code.
+> Post the outputs or screenshots for errors.
+> 
+> Explain what you want by example or code **in English**.