Created Contributing to Bootstrap (markdown)

Contributing-to-Bootstrap.md

@@ -0,0 +1,17 @@
+Recommendations and requirements for how to best contribute to Bootstrap. We strive to obey these as best as possible, though we may drift as development continues in our primary development branches. As always, thanks for contributing--we hope these guidelines make it easier and shed some light on our approach and processes.
+
+### Key branches
+- `master` is the latest, deployed version
+- `2.0-wip` is the official branch for the next major, non-backwards-compatible version
+- `dev` is the ongoing branch for the next minor point release (e.g., 1.**4** or 1.**5**)
+
+### Pull requests
+- CSS changes must be done in .less files first, never just the compiled files
+- If modifying the .less files, always recompile and commit the compiled files bootstrap.css and bootstrap.min.css
+- Try not to pollute your pull request with unintended changes--keep them simple and small
+- Try to share which browsers your code has been tested in before submitting a pull request
+
+### Coding standards: HTML
+- Double quotes only, never single quotes
+- Always use proper indentation
+- Use tags and elements appropriate for an HTML5 doctype (e.g., self-closing tags)