Added issue templates for feature requests and questions.

.github/ISSUE_TEMPLATE/BUG_REPORT.md

@@ -1,3 +1,9 @@
+---
+name: Bug report
+about: Report errors or unexpected behavior.
+
+---
+
 <!--
 Thanks for reporting issues of Telegram Desktop!
 

.github/ISSUE_TEMPLATE/FEATURE_REQUEST.md

@@ -0,0 +1,18 @@
+---
+name: Feature request
+about: Suggest an idea.
+title: "[Feature Request] "
+
+---
+
+### Is your feature request related to a problem?
+A clear and concise description of what the problem is.
+
+### Describe the solution you'd like
+A clear and concise description of what you want to happen.
+
+### Describe alternatives you've considered
+A clear and concise description of any alternative solutions or features you've considered.
+
+### Additional context
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/QUESTION.md

@@ -0,0 +1,8 @@
+---
+name: Question
+about: Ask a question.
+title: "[Question] "
+labels: 'question'
+assignees: ''
+
+---