Update issue templates [skip ci]

.github/ISSUE_TEMPLATE/Bug_report.md

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+---
+name: Bug Report
+about: Create an issue to help us know about a potential bug
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**Input Code**
+<!--- If you have link to our REPL or a standalone repo please link that! -->
+
+```js
+var your => (code) => here;
+```
+
+### Babel/Babylon Configuration (.babelrc, package.json, cli command)
+<!--- If describing a bug, tell us what your babel configuration looks like -->
+
+```js
+{
+  "your": { "config": "here" }
+}
+```
+
+**Expected behavior/code**
+A clear and concise description of what you expected to happen (or code).
+
+**Possible Solution**
+<!--- Not obligatory, but suggest a fix/reason for the bug, -->
+<!--- or ideas how to implement the addition or change -->
+
+**Environment**
+- Babel version(s): [e.g. v6.0.0, v7.0.0-beta.34]
+- Node/npm version: [e.g. Node 8/npm 5]
+- OS: [e.g. OSX 10.13.4, Windows 10]
+- Monorepo [e.g. yes/no/Lerna]
+- How you are using Babel: [e.g. `cli`, `register`, `loader`]
+
+**Additional context/Screenshots**
+Add any other context about the problem here. If applicable, add screenshots to help explain.

.github/ISSUE_TEMPLATE/Custom.md

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+---
+name: Custom Issue
+about: If the issue doesn't fit as a bug or a feature
+
+---
+
+

.github/ISSUE_TEMPLATE/Feature_request.md

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+---
+name: Feature Request
+about: Suggest an idea for this project
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Basic Example**
+Describe an example where this could be better.
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen. Add any considered drawbacks.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Teachability, Documentation, Adoption, Migration Strategy**
+Explain how how users will be able to use this and possibly write out a version the docs.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.