Add GREEK docs folder and README.md (#30597)

* Add GREEK docs folder and README.md

* Create and Update Greek README.md 

Started working on the greek version of the README.md
Awaiting acceptance of Pull Request so I can continue.

* Update README.md

* Update README.md

* Update README.md

* Create CONTRIBUTING.md

* Update CONTRIBUTING.md

Add link to Greek translation of the file

* Update CONTRIBUTING.md

Add the first paragraph

* Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -8,6 +8,7 @@
         <td><a href="/docs/portuguese/CONTRIBUTING.md"> Português </a></td>
         <td><a href="/docs/russian/CONTRIBUTING.md"> русский </a></td>
         <td><a href="/docs/spanish/CONTRIBUTING.md"> Español </a></td>
+        <td><a href="/docs/greek/CONTRIBUTING.md"> Ελληνικά </a></td>
     </tr>
 </table>
 

docs/README.md

@@ -9,6 +9,7 @@
         <td><a href="/docs/portuguese/README.md"> Português </a></td>
         <td><a href="/docs/spanish/README.md"> Español </a></td>
         <td><a href="/docs/german/README.md"> Deutsch </a></td>
+        <td><a href="/docs/greek/README.md"> Ελληνικά </a></td>
     </tr>
 </table>
 

docs/greek/CONTRIBUTING.md

@@ -0,0 +1,142 @@
+<table>
+    <tr>
+        <!-- Do not translate this table -->
+        <td> Read these guidelines in </td>
+        <td><a href="/CONTRIBUTING.md"> English </a></td>
+        <td><a href="/docs/arabic/CONTRIBUTING.md"> عربى </a></td>
+        <td><a href="/docs/chinese/CONTRIBUTING.md"> 中文 </a></td>
+        <td><a href="/docs/portuguese/CONTRIBUTING.md"> Português </a></td>
+        <td><a href="/docs/russian/CONTRIBUTING.md"> русский </a></td>
+        <td><a href="/docs/spanish/CONTRIBUTING.md"> Español </a></td>
+        <td><a href="/docs/greek/CONTRIBUTING.md"> Ελληνικά </a></td>
+    </tr>
+</table>
+
+# Οδηγίες για συνεισφορά
+
+Γειά χαρά 👋!
+
+Το freeCodeCamp.org υπάρχει χάρη σε χιλιάδες εθελοντές σαν και εσένα. Είμαστε ευγνώμονες για τις συνεισφορές σου και είμαστε ενθουσιασμένοι που σας καλωσορίζουμε μαζί μας.
+
+Επιβάλουμε αυστηρά τον ["Κώδικα δεοντολογίας"](https://www.freecodecamp.org/code-of-conduct). Διαβάστε τον εύκολα σε ένα λεπτό. Είναι μόνο 196 λέξεις.
+
+Καλή συνεισφορά 🎉!
+
+## Here are some fun ways that you can help
+
+You can choose to contribute to any area that interests you:
+
+1. [Contribute to this open source codebase](#contribute-to-this-open-source-codebase). Help to edit [guide articles](https://guide.freecodecamp.org/), [coding challenges](https://learn.freecodecamp.org/), or fix bugs on the learning platform.
+
+2. Help campers on our [public forum](https://www.freecodecamp.org/forum/). [Answer their coding questions](https://www.freecodecamp.org/forum/?max_posts=1) or [give them feedback on their coding projects](https://www.freecodecamp.org/forum/c/project-feedback?max_posts=1)
+
+3. Help us add subtitles to our [YouTube channel videos](https://www.youtube.com/channel/UC8butISFwT-Wl7EV0hUK0BQ/videos).
+
+## Contribute to this open source codebase
+
+We have a huge open source codebase consisting of thousands of [coding challenges](https://learn.freecodecamp.org) and [guide articles](https://guide.freecodecamp.org).
+
+You can help us to:
+
+- [📝 Research, Write and Update our guide articles](#research-write-and-update-our-guide-articles)
+
+- [💻 Create, Update and Fix Bugs in our coding challenges](#create-update-and-fix-bugs-in-our-coding-challenges)
+
+- [🌐 Translate guide articles and coding challenges](#translate-guide-articles-and-coding-challenges)
+
+- [🛠 Fix bugs in freeCodeCamp.org's learning platform](#help-us-fix-bugs-in-freecodecamporgs-learning-platform)
+
+### Research, Write and Update our guide articles
+
+**What are Guide articles?**
+
+Guide articles help you to get a quick understanding of a technology concept. These are short, plain-English explanations that you can read before going on to more in-depth resources.
+
+You can find an [example article about HTML Anchor Elements here](https://github.com/freeCodeCamp/freeCodeCamp/blob/master/guide/english/html/elements/a-tag/index.md).
+
+**What can I write an article about?**
+
+We welcome your help in writing these articles. You don't have to be an expert in a topic to write about it—this entire Guide is open source, so even if you make a mistake, another contributor will eventually correct it.
+
+To help, find a `stub article` on our [Guide website](https://guide.freecodecamp.org), write the article, then open a pull request to replace the stub with your article. A [pull request](https://help.github.com/articles/about-pull-requests/) is how you'll suggest changes. It lets others know about, review, and eventually adopt your changes.
+
+If you can't find a stub about the topic you'd like to write about, you can open a PR that creates the stub and includes your draft article.
+
+If you would like to help improve guide articles, here's [how to work on guide articles](/docs/how-to-work-on-guide-articles.md).
+
+### Create, Update and Fix Bugs in our coding challenges
+
+All our Coding challenges are curated by the community, bringing in expert knowledge from volunteers like you.
+
+You can help expand them and make their wording more clear. You can update the user stories to explain the concept better and even remove redundant ones. You can also improve the challenge tests to make them more accurately test people's code.
+
+If you're interested in improving these coding challenges, here's [how to work on coding challenges](/docs/how-to-work-on-coding-challenges.md).
+
+### Translate guide articles and coding challenges
+
+You can help us to translate our Guide articles and Coding challenges into a language that you speak. Currently we have translated versions in:
+
+- [Chinese (中文)](https://github.com/freeCodeCamp/freeCodeCamp/tree/master/curriculum/challenges/chinese)
+- [Russian (русский)](https://github.com/freeCodeCamp/freeCodeCamp/tree/master/curriculum/challenges/russian)
+- [Arabic (عربى)](https://github.com/freeCodeCamp/freeCodeCamp/tree/master/curriculum/challenges/arabic)
+- [Spanish (Español)](https://github.com/freeCodeCamp/freeCodeCamp/tree/master/curriculum/challenges/spanish)
+- [Portuguese (Português)](https://github.com/freeCodeCamp/freeCodeCamp/tree/master/curriculum/challenges/portuguese)
+
+We would love your help in improving the quality of these translations. Millions of people use the English language version of freeCodeCamp.org, and we expect millions more to use these translated versions as well.
+
+### Help us fix bugs in freeCodeCamp.org's learning platform
+
+Our learning platform runs on a modern JavaScript stack. It has various components, tools and libraries including but not limited to Node.js, MongoDB, LoopBack, OAuth 2.0, React, Gatsby, Webpack, and more.
+
+Broadly,
+
+- We have a Node.js based API server.
+- A set of React based client applications.
+- A script that we use to evaluate our Frontend projects.
+
+Contributing to this requires some understanding of APIs, ES6 Syntax and a lot of curiosity.
+
+Essentially we expect basic familiarity with some of the aforementioned technologies, tools and libraries. That being said, you are not required to be an expert on them in order to contribute.
+
+Feel free to ask us questions on the related issue threads and we will be glad to answer them. When in doubt, you can reach Mrugesh Mohapatra [`@raisedadead`](https://github.com/raisedadead) or Stuart Taylor [`@bouncey`](https://github.com/bouncey) from our platform dev team to help you with this.
+
+If you want to help us improve our codebase, here's [how to setup freeCodeCamp locally](/docs/how-to-setup-freecodecamp-locally.md).
+
+## Frequently Asked Questions
+
+**How can I report a bug that is not on board?**
+
+If you think you've found a bug, first read the ["Help I've Found a Bug"](https://forum.freecodecamp.org/t/how-to-report-a-bug/19543) article and follow its instructions.
+
+If you're confident it's a new bug, go ahead and create a new GitHub issue. Be sure to include as much information as possible so that we can reproduce the bug. We have a pre-defined issue template to help you through this.
+
+Please note that any issues that seek coding help on a challenge will be closed. The issue tracker is strictly for codebase related issues and discussions. Whenever in doubt, you should [seek assistance on the forum](https://www.freecodecamp.org/forum) before making a report.
+
+**How can I report a security issue?**
+
+Please don't create GitHub issues for security issues. Instead, please send an email to `security@freecodecamp.org` and we'll look into it immediately.
+
+**I am stuck on something that is not included in this documentation. How can I get help?**
+
+Feel free to ask for help in:
+
+- [The "Contributors" category of our public forum](https://www.freecodecamp.org/forum/c/contributors)
+- [Our public contributors chat room on Gitter](https://gitter.im/FreeCodeCamp/Contributors)
+
+We are excited to help you contribute to any of the topics that you would like to work on. Make sure you search for your query before posting a new one. Be polite and patient. Our community of volunteers and moderators are always around to guide you through your queries.
+
+**I am new to GitHub and Open Source in general:**
+
+Read our [How to Contribute to Open Source Guide](https://github.com/freeCodeCamp/how-to-contribute-to-open-source).
+
+**What do these different labels that are tagged on issues mean?**
+
+Our community moderators [triage](https://en.wikipedia.org/wiki/Software_bug#Bug_management) issues and pull requests based on their priority, severity and other factors. You can [find a complete glossary of their meanings here](https://github.com/freecodecamp/freecodecamp/labels).
+
+You should go through **`Help Wanted`** or **`first timers welcome`** issues for a quick overview of what is available for you to work on. These are up for grabs and you do not need to seek permission before working on them.
+
+If these issues lack clarity on what needs to be done, feel free to ask questions in the comments.
+
+**I found a typo, should I report an issue before I can make a pull request?**
+
+For typos and other wording changes, you can directly open pull requests without first creating an issue. Issues are more for discussing larger problems associated with code or structural aspects of the curriculum.

docs/greek/README.md

@@ -0,0 +1,52 @@
+<table>
+    <tr>
+        <!-- Do not translate this table -->
+        <td> Read these guidelines in </td>
+        <td><a href="/CONTRIBUTING.md"> English </a></td>
+        <td><a href="/docs/arabic/README.md"> عربى </a></td>
+        <td><a href="/docs/chinese/README.md"> 中文 </a></td>
+        <td><a href="/docs/russian/README.md"> русский </a></td>
+        <td><a href="/docs/portuguese/README.md"> Português </a></td>
+        <td><a href="/docs/spanish/README.md"> Español </a></td>
+        <td><a href="/docs/german/README.md"> Deutsch </a></td>
+        <td><a href="/docs/greek/README.md"> Ελληνικά </a></td>
+    </tr>
+</table>
+
+# Documentation Quick Reference
+
+Γειά σας 👋!
+
+Αυτός ο φάκελος περιέχει όλη την τεκμηρίωση σχετικά με τη συμβολή στο freeCodeCamp.org
+
+## [If you are getting started, start by reading this first.](/CONTRIBUTING.md)
+
+---
+
+## Quick references articles
+
+1. How to work on Guide articles.
+2. How to work on Coding Challenges.
+3. How to setup freeCodeCamp locally.
+4. How to catch outgoing emails locally.
+
+## Style guides
+
+1. Style guide for creating guide articles.
+2. Style guide for creating coding challenges.
+
+## Quick commands reference when working locally
+
+A quick reference to the commands that you will need, when working locally.
+
+| command | description |
+| ------- | ----------- |
+| `npm run bootstrap` | Bootstraps the different services. |
+| `npm run seed` | Parse all the challenge markdown files and inserts them into MongoDB. |
+| `npm run develop` | Starts the freeCodeCamp API Server and Client Applications. |
+| `npm test` |  Run all JS tests in the system, including client, server, lint and challenge tests. |
+| `npm run test:client` | Run the client test suite. |
+| `npm run test:curriculum` | Run the curriculum test suite. |
+| `npm run test:server` | Run the server test suite. |
+| `npm run commit` | An interactive tool to help you build a good commit message. |
+