Merge pull request #1276 from arduino/karlsoderby/iotc-brokenurl

[IoTC] Fix old references and broken links

Author: karlsoderby

content/arduino-cloud/01.getting-started/09.arduino-cloud-for-business/contend.md

@@ -386,10 +386,6 @@ Build and train professional-grade predictive models with just a few lines of co
 
 You can find more tutorials on the [Arduino IoT Cloud documentation page](https://docs.arduino.cc/arduino-cloud/).
 
-## Support
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-Sentence provided by Content team.
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 ## Congratulations
 
 You are just a few easy steps from deploying your very own IoT project. Having a project connected to the Arduino Cloud for Business opens up many possibilities, such as tracking data in real-time, triggering remote devices and building wireless systems.

content/arduino-cloud/03.tutorials/share-your-sketches/share-your-sketches.md

@@ -5,7 +5,7 @@ description: 'Learn about different methods you can use to share your Arduino sk
 
 ## Share Your Sketches on the Arduino Web Editor
 
-The [Arduino Web Editor](https://create.arduino.cc/editor) is the online IDE developed by the Arduino team, this web app is part of the [Arduino Cloud platform](https://www.arduino.cc/en/Main/Create). If you are new to it you can learn all about it on this [Getting Started tutorial](https://create.arduino.cc/projecthub/Arduino_Genuino/getting-started-with-the-arduino-web-editor-4b3e4a).
+The [Arduino Web Editor](https://create.arduino.cc/editor) is the online IDE developed by the Arduino team, this web app is part of the [Arduino Cloud platform](https://cloud.arduino.cc/home/). If you are new to it you can learn all about it on this [Getting Started tutorial](/arduino-cloud/getting-started/getting-started-web-editor).
 
 The Arduino sketch is the unit that can include everything you need to bring an idea to life. With the **Share feature** of the Web Editor you can simply give someone access to your sketches just by sending them a URL, or by embedding the sketch into a webpage or in a Project Hub tutorial.