Linked all translated readme to main and updated Translations.md (#254)

* Update README.md

* Update README.bn.md

* Update README.zh-cn.md

* Update README.tr.md

* Update TRANSLATIONS.md

* Update TRANSLATIONS.md

* Update README.bn.md

* Update README.tr.md

* Update README.zh-cn.md

* Update README.bn.md

* Update README.tr.md

* Update README.zh-cn.md

* Update TRANSLATIONS.md

* Update TRANSLATIONS.md

Co-authored-by: Jim Bennett <jim.bennett@microsoft.com>

README.md

@@ -8,6 +8,10 @@
 [![GitHub forks](https://img.shields.io/github/forks/microsoft/IoT-For-Beginners.svg?style=social&label=Fork)](https://GitHub.com/microsoft/IoT-For-Beginners/network/)
 [![GitHub stars](https://img.shields.io/github/stars/microsoft/IoT-For-Beginners.svg?style=social&label=Star)](https://GitHub.com/microsoft/IoT-For-Beginners/stargazers/)
 
+[![Bengali](https://img.shields.io/badge/-Bengali-blue)](translations/README.bn.md)
+[![Chinese](https://img.shields.io/badge/-Chinese-yellow)](translations/README.zh-cn.md)
+[![Turkish](https://img.shields.io/badge/-Turkish-darkgreen)](translations/README.tr.md)
+
 # IoT for Beginners - A Curriculum
 
 Azure Cloud Advocates at Microsoft are pleased to offer a 12-week, 24-lesson curriculum all about IoT basics. Each lesson includes pre- and post-lesson quizzes, written instructions to complete the lesson, a solution, an assignment and more. Our project-based pedagogy allows you to learn while building, a proven way for new skills to 'stick'.

TRANSLATIONS.md

@@ -8,6 +8,11 @@ There are [**translations**](https://github.com/microsoft/IoT-For-Beginners/tree
 
 Translated lessons should follow this naming convention:
 
+When translating the initial Readme, link the other translations to your translated readme and link yours to the main English Readme by using Shields as shown:
+
+```markdown
+[![Bengali](https://img.shields.io/badge/-Bengali-blue)](translations/README.bn.md)
+```
 **README._[language]_.md**
 
 where _[language]_ is a two letter language abbreviation following the ISO 639-1 standard (e.g. `README.es.md` for Spanish and `README.nl.md` for Dutch).

translations/README.bn.md

@@ -8,6 +8,10 @@
 [![GitHub forks](https://img.shields.io/github/forks/microsoft/IoT-For-Beginners.svg?style=social&label=Fork)](https://GitHub.com/microsoft/IoT-For-Beginners/network/)
 [![GitHub stars](https://img.shields.io/github/stars/microsoft/IoT-For-Beginners.svg?style=social&label=Star)](https://GitHub.com/microsoft/IoT-For-Beginners/stargazers/)
 
+[![English](https://img.shields.io/badge/-English-red)](../README.md)
+[![Chinese](https://img.shields.io/badge/-Chinese-yellow)](README.zh-cn.md)
+[![Turkish](https://img.shields.io/badge/-Turkish-darkgreen)](README.tr.md)
+
 # বিগিনারদের জন্য আইওটি - একটি সুবিন্যস্ত পাঠ্যক্রম
 
 মাইক্রোসফট এর Azure Cloud Advocate গণ আইওটি বেসিক সম্পর্কে 12-সপ্তাহ, 24-লেসনের এই কোর্সটি তৈরী করেছেন। প্রতিটি পাঠের মধ্যে লেকচার-পূর্ববর্তী এবং লেকচার-পরবর্তী কুইজ, পাঠ সম্পূর্ণ করার জন্য লিখিত নির্দেশাবলী, একটি সমাধান, একটি এসাইনমেন্ট এবং আরও অনেক কিছু রয়েছে। আমাদের প্রজেক্ট-ভিত্তিক পদ্ধতির মাধ্যমে নতুন বিষয় সম্পর্কে জানা এবং কাজ করে অভিজ্ঞতা অর্জন দুটোই হবে একসাথে - নতুন স্কিল শেখার জন্য যা নিঃসন্দেহে একটি কার্যকরী পন্থা।

translations/README.tr.md

@@ -8,6 +8,10 @@
 [![GitHub forks](https://img.shields.io/github/forks/microsoft/IoT-For-Beginners.svg?style=social&label=Fork)](https://GitHub.com/microsoft/IoT-For-Beginners/network/)
 [![GitHub stars](https://img.shields.io/github/stars/microsoft/IoT-For-Beginners.svg?style=social&label=Sta)](https://GitHub.com/microsoft/IoT-For-Beginners/stargazers/)
 
+[![Bengali](https://img.shields.io/badge/-Bengali-blue)](README.bn.md)
+[![English](https://img.shields.io/badge/-English-red)](../README.md)
+[![Chinese](https://img.shields.io/badge/-Chinese-yellow)](README.zh-cn.md)
+
 # Yeni Başlayanlar için IOT
 Microsoft'tan Azure Cloud Advocates size IOT temelleri hakkında 12 haftalık 24 dersten oluşan programı zevkle sunar. Her ders ön-quiz, dersi tamamlamanız için talimatlar, bir çözüm, bir ödev ve ders sonrası quiz içerir. Proje tabanlı pedogojimiz öğrenirken bir şeyler oluşturmanıza izin verecek. Bu, ispanlanmıştır ki yeni becerileri adeta size "yapıştıracak".
 

translations/README.zh-cn.md

@@ -8,6 +8,10 @@
 [![GitHub forks](https://img.shields.io/github/forks/microsoft/IoT-For-Beginners.svg?style=social&label=Fork)](https://GitHub.com/microsoft/IoT-For-Beginners/network/)
 [![GitHub stars](https://img.shields.io/github/stars/microsoft/IoT-For-Beginners.svg?style=social&label=Star)](https://GitHub.com/microsoft/IoT-For-Beginners/stargazers/)
 
+[![Bengali](https://img.shields.io/badge/-Bengali-blue)](README.bn.md)
+[![English](https://img.shields.io/badge/-English-red)](../README.md)
+[![Turkish](https://img.shields.io/badge/-Turkish-darkgreen)](README.tr.md)
+
 # 物联网（IoT for Beginners） – 课程
 
 Microsoft 的 Azure Cloud 大使很高兴提供关于 IoT 基础一个12个星期、24课的课程。每一课包括课前测验和课后测验、为了完成课的指示、解答、作业等。我们通过项目式的教学让你一边创建，一边学习，这是一种有效率巩固新技能的方式。