Merge pull request react-bootstrap#1261 from AlexKVal/r14-readme

Clarify about 'React-0.14' releases in the Readme.

Author: taion

README.md

@@ -18,6 +18,14 @@
 
 __Under active development - APIs will change.__ Check out the [1.0.0 Roadmap](https://github.com/react-bootstrap/react-bootstrap/wiki#100-roadmap) and [Contributing Guidelines][contributing] to see where you can help out. Prior to the 1.0.0 release, deprecations or breaking changes should result in a Minor version bump.
 
+## React-0.14
+
+If you want to try / play with `React-0.14` betas, we cut releases from the `react-14` branch.
+They're on the `react-pre` tag.
+```
+> npm install react-bootstrap@react-pre
+```
+
 ## Docs
 
 See the [documentation][documentation] with live editable examples.
@@ -54,7 +62,7 @@ Yes please! See the [contributing guidelines][contributing] for details.
 [npm]: http://badge.fury.io/js/react-bootstrap
 
 [bower-badge]: https://badge.fury.io/bo/react-bootstrap.svg
-[bower]: http://badge.fury.io/bo/react-bootstrap 
+[bower]: http://badge.fury.io/bo/react-bootstrap
 
 [gitter-badge]: https://badges.gitter.im/Join%20Chat.svg
 [gitter]: https://gitter.im/react-bootstrap/react-bootstrap?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
@@ -66,7 +74,7 @@ Yes please! See the [contributing guidelines][contributing] for details.
 [dev-deps]: https://david-dm.org/react-bootstrap/react-bootstrap#info=devDependencies
 
 [peer-deps-badge]: https://david-dm.org/react-bootstrap/react-bootstrap/peer-status.svg
-[peer-deps]: https://david-dm.org/react-bootstrap/react-bootstrap#info=peerDependencies 
+[peer-deps]: https://david-dm.org/react-bootstrap/react-bootstrap#info=peerDependencies
 
 [react-router-bootstrap]: https://github.com/react-bootstrap/react-router-bootstrap
 [react-router]: https://github.com/rackt/react-router