Update issue templates

.github/ISSUE_TEMPLATE/Bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+
+---
+
+<!-- 🚨 STOP 🚨 𝗦𝗧𝗢𝗣 🚨 𝑺𝑻𝑶𝑷 🚨
+
+Half of all issues filed here are duplicates, answered in the FAQ, or not appropriate for the bug tracker. Even if you think you've found a *bug*, please read the FAQ first, especially the Common "Bugs" That Aren't Bugs" section!
+
+Please help us by doing the following steps before logging an issue:
+  * Search: https://github.com/Microsoft/TypeScript/search?type=Issues
+  * Read the FAQ: https://github.com/Microsoft/TypeScript/wiki/FAQ
+
+Please fill in the *entire* template below.
+-->
+
+<!-- Please try to reproduce the issue with `typescript@next`. It may have already been fixed. -->
+**TypeScript Version:**  2.9.0-dev.201xxxxx
+
+<!-- Search terms you tried before logging this (so others can find this issue more easily) -->
+**Search Terms:** 
+
+**Code**
+
+```ts
+// A *self-contained* demonstration of the problem follows...
+// Test this by running `tsc` on the command-line, rather than through another build tool such as Gulp, Webpack, etc.
+```
+
+**Expected behavior:**
+
+**Actual behavior:**
+
+**Playground Link:** <!-- A link to a TypeScript Playground "Share" link which demonstrates this behavior --> 
+
+**Related Issues:** <!-- Did you find other bugs that looked similar? -->

.github/ISSUE_TEMPLATE/Custom.md

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+---
+name: Question
+about: Ask a question
+
+---
+
+THE ISSUE TRACKER IS NOT FOR QUESTIONS.
+
+DO NOT CREATE A NEW ISSUE TO ASK A QUESTION.
+
+IF YOU ARE HAVING PROBLEMS WITH YOUR TYPESCRIPT CODE, DO NOT ASK A QUESTION HERE.
+
+Tens of thousands of TypeScript questions have been asked and answered on StackOverflow; see https://stackoverflow.com/questions/tagged/typescript . You can ask questions there or on other websites.
+
+The only exception is if you have a question about *the TypeScript compiler API itself*. Please post a complete example of what you're trying to do and precisely describe what your question is.

.github/ISSUE_TEMPLATE/Feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+
+---
+
+<!-- 🚨 STOP 🚨 𝗦𝗧𝗢𝗣 🚨 𝑺𝑻𝑶𝑷 🚨
+
+Half of all issues filed here are duplicates, answered in the FAQ, or not appropriate for the bug tracker. Please read the FAQ first, especially the "Common Feature Requests" section.
+
+-->
+
+## Search Terms
+
+<!-- List of keywords you searched for before creating this issue. Write them down here so that others can find this suggestion more easily -->
+
+## Suggestion
+
+<!-- A summary of what you'd like to see added or changed -->
+
+## Use Cases
+
+<!--
+What do you want to use this for?
+What shortcomings exist with current approaches?
+-->
+
+## Examples
+
+<!-- Show how this would be used and what the behavior would be -->
+
+## Checklist
+
+I attest that all of the following are true:
+ [ ] This wouldn't change the behavior of existing JavaScript code
+ [ ] This could be implemented without emitting different JS based on the types of the expressions
+ [ ] This isn't a runtime feature that should be handled by TC39 instead
+ [ ] This wouldn't be a breaking change in existing TypeScript / JavaScript code