Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,16 @@
+---
+name: Bug report
+about: Report a problem with an icon or our documentation.
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+Before opening, [search for duplicate or closed issues](https://github.com/twbs/icons/issues?utf8=%E2%9C%93&q=is%3Aissue).
+
+As appropriate, please include:
+
+- Operating system and version (Windows, macOS, Android, iOS)
+- Browser and version (Chrome, Firefox, Safari, Microsoft Edge, Opera, Android Browser)
+- A [reduced test case](https://css-tricks.com/reduced-test-cases/) or suggested fix using [CodePen](https://codepen.io/) or [JS Bin](https://jsbin.com/)

.github/ISSUE_TEMPLATE/icon-request.md

@@ -0,0 +1,10 @@
+---
+name: Icon request
+about: Suggest new icons to add to the project
+title: ''
+labels: icon-request
+assignees: ''
+
+---
+
+