Update table Markdown to use Github style Markdown table, move translation call to CONTRIBUTING.md

Author: catarak

.github/CONTRIBUTING.md

@@ -33,6 +33,8 @@ Don't know where to begin? Here are some suggestions to get started:
   - Front end: React/Redux, CSS/Sass, CodeMirror
   - Back end: Node, Express, MongoDB, Jest, AWS
   - DevOps: Travis CI, Jest, Docker, Kubernetes, AWS
+  - Documentation
+  - Translations: Application and documentation
 * Use the [p5.js Web Editor](https://editor.p5js.org)! Find a bug? Think of something you think would add to the project? Open an issue.
 * Expand an existing issue. Sometimes issues are missing steps to reproduce, or need suggestions for potential solutions. Sometimes they need another voice saying, "this is really important!"
 * Try getting the project running locally on your computer by following the [installation steps](./../developer_docs/installation.md).

README.md

@@ -1,15 +1,11 @@
 # [p5.js Web Editor](https://editor.p5js.org)
 
-<table>
-    <caption>Documentation of p5.js Web Editor is also available in following languages</caption>
-    <tbody>
-        <tr>
-            <td><a href="https://github.com/processing/p5.js-web-editor/blob/master/translations/ko">한국어</a></td>
-        </tr>
-    </tbody>
-</table>
-
-> We're looking for translators to help translate p5.js Web Editor. Please read [developer_docs](https://github.com/processing/p5.js-web-editor/tree/master/developer_docs) to contribute. 
+
+| Documentation is also available in the following languages |
+| ---- |
+| [한국어](https://github.com/processing/p5.js-web-editor/blob/master/translations/ko) |
+
+## Welcome! 👋👋🏿👋🏽👋🏻👋🏾👋🏼
 
 The p5.js Web Editor is a platform for creative coding, with a focus on making coding accessible for as many people as possible, including artists, designers, educators, beginners, and anyone who wants to learn. Simply by opening the website you can get started writing p5.js sketches without downloading or configuring anything. The editor is designed with simplicity in mind by limiting features and frills. We strive to listen to the community to drive the editor’s development, and to be intentional with every change. The editor is free and open-source.