* Update README.md
* Spelling fixes
* Update hardware.md
* Adding IoT for beginners episode
* Adding intro video
* Fixing formatting of read more and self study sections.
* Adding instructions for installing the ReSpeaker
* Adding auth to language understanding
* Adding Wio terminal timer setting
* Update config.h
* Fixing links and images
* Increasing version numbers for SD card fix
* Adding SD card requirement
* speech and translations
* Adding more on translations
* All Wio Terminal now working except playing audio
* translate zh-cn: sensor 感应器->传感器
* revert 1-getting-started/lessons/1-introduction-to-iot/translations/README.zh-cn.md for the same pr of #211
Co-authored-by: Jim Bennett <jim.bennett@microsoft.com>
* Rename wio-terminal.zh.md to wio-terminal.zh-cn.md
* Rename assignment.zh.md to assignment.zh-cn.md
* Rename README.zh.md to README.zh-cn.md
* Rename virtual-device.zh.md to virtual-device.zh-cn.md
* Rename README.zh.md to README.zh-cn.md
Julia Muiruri
Flex Zhong
Jim Bennett
Pandz18
Max.Sun
Jks Liu
Mireille T