Merge pull request #881 from azamat-sharapov/contributing-typo

Minor typo fix

Author: yyx990803

CONTRIBUTING.md

@@ -7,7 +7,7 @@ Hi! I’m really excited that you are interested in contributing to Vue.js. Befo
 - The issue list of this repo is **exclusively** for bug reports and feature requests. For simple questions, please use either [Gitter](https://gitter.im/yyx990803/vue) or [vuejs/Discussion](https://github.com/vuejs/Discussion/issues).
 - Try to search for your issue, it may have already been answered or even fixed in the development branch.
 - Check if the issue is reproducible with the latest stable version of Vue. If you are using a pre-release, please indicate the specific version you are using.
-- It is **reqruied** that you clearly describe the steps necessary to reproduce the issue you are running into. Issues with no clear repro steps will be closed immediately.
+- It is **required** that you clearly describe the steps necessary to reproduce the issue you are running into. Issues with no clear repro steps will be closed immediately.
 - It is recommended that you make a JSFiddle to demonstrate your issue. You could start with [this template](http://jsfiddle.net/5sH6A/) that already includes the latest version of Vue.
 - If your issue is resolved but still open, don’t hesitate to close it. In case you found a solution by yourself, it could be helpful to explain how you fixed it.
 
@@ -34,7 +34,7 @@ Hi! I’m really excited that you are interested in contributing to Vue.js. Befo
 - align equal signs where appropriate.
 - Return early.
 - 1 space after `function`
-- 1 space between arguments, but not between parens.
+- 1 space between arguments, but not between parentheses.
 - When in doubt, read the source code.
 - Break long ternary conditionals like this: