add contributing.md

fork of https://github.com/sindresorhus/awesome/blob/master/contributing.md

contributing.md

@@ -0,0 +1,35 @@
+# Contribution Guidelines
+
+## Adding to this list
+
+Please ensure your pull request adheres to the following guidelines:
+
+- Search previous suggestions before making a new one, as yours may be a duplicate.
+- Make sure the list is useful before submitting. That implies it has enough content and every item has a good succinct description.
+- Make an individual pull request for each suggestion.
+- Use [title-casing](http://titlecapitalization.com) (AP style). 
+- Use the following format: `[List Name](link)`
+- Link additions should be added to the bottom of the relevant category.
+- New categories or improvements to the existing categorization are welcome.
+- Check your spelling and grammar.
+- Make sure your text editor is set to remove trailing whitespace.
+- The pull request and commit should have a useful title.
+
+Thank you for your suggestions!
+
+## Creating your own awesome list
+
+To create your own list, check out the [instructions](create-list.md).
+
+## Adding something to an Awesome list
+
+If you have something awesome to contribute to an awesome list, this is how you do it.
+
+You'll need a [GitHub account](https://github.com/join)!
+
+1. Access the awesome list's GitHub page. For example: https://github.com/sindresorhus/awesome
+2. Click on the `readme.md` file: ![Step 2 Click on Readme.md](https://cloud.githubusercontent.com/assets/170270/9402920/53a7e3ea-480c-11e5-9d81-aecf64be55eb.png)
+3. Now click on the edit icon. ![Step 3 - Click on Edit](https://cloud.githubusercontent.com/assets/170270/9402927/6506af22-480c-11e5-8c18-7ea823530099.png)
+4. You can start editing the text of the file in the in-browser editor. Make sure you follow guidelines above. You can use [GitHub Flavored Markdown](https://help.github.com/articles/github-flavored-markdown/). ![Step 4 - Edit the file](https://cloud.githubusercontent.com/assets/170270/9402932/7301c3a0-480c-11e5-81f5-7e343b71674f.png)
+5. Say why you're proposing the changes, and then click on "Propose file change". ![Step 5 - Propose Changes](https://cloud.githubusercontent.com/assets/170270/9402937/7dd0652a-480c-11e5-9138-bd14244593d5.png)
+6. Submit the [pull request](https://help.github.com/articles/using-pull-requests/)!