feat: add code of conduct (#1541)

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,5 +1,5 @@
 name: "🕷️ Bug report"
-description: Report errors or unexpected behavior
+description: Report errors or unexpected behavior [please use English :）]
 labels:
 - bug
 body:

.github/ISSUE_TEMPLATE/document_issue.yml

@@ -1,5 +1,5 @@
 name: "📚 Documentation Issue"
-description: Report issues in our documentation
+description: Report issues in our documentation [please use English :）]
 labels: 
 - ducumentation
 body:

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,5 +1,5 @@
 name: "⭐ Feature or enhancement request"
-description: Propose something new.
+description: Propose something new. [please use English :）]
 labels:
 - enhancement
 body:

.github/ISSUE_TEMPLATE/help_wanted.yml

@@ -1,5 +1,5 @@
 name: "🤝 Help Wanted"
-description: "Request help from the community"
+description: "Request help from the community" [please use English :）]
 labels:
 - help-wanted
 body:

.github/ISSUE_TEMPLATE/translation_issue.yml

@@ -1,5 +1,5 @@
 name: "🌐 Localization/Translation issue"
-description: Report incorrect translations.
+description: Report incorrect translations. [please use English :）]
 labels:
 - translation
 body: