Merge pull request #2505 from arduino/benjamindannegard/cloud-documentation-remove-free-school-space

[PXCT-932] Cloud - Removed mention of free shared spaces

Author: BenjaminDannegard

content/arduino-cloud/10.education/00.arduino-cloud-for-education/content.md

@@ -66,7 +66,7 @@ The **Sidebar** on the left provides you quick access to all the important tools
 - **Devices, Things, Dashboards, Triggers** - these are the core functionalities of the Cloud Platform, enabling  you to build IoT projects that allows you to collect, analyze and monitor data from the environment. 
 - **Resources, Courses & Templates** - These are learning materials and ready-made IoT projects to get you started with your educational kits or other Arduino hardware. 
 - **Integrations** - Integrate with third-party APIs and extend your projects functionality. 
-- **Plans Usage** - Here you can track the usage of your free plans. You can always upgrade to a School Plan whenever you want. If you are curious, take a look at our [School Plans options](https://cloud.arduino.cc/#schools).
+- **Plans Usage** - Here you can track the usage of your free plans.
 
 ***If you are new to the platform, make sure you try out the interactive walkthrough for a faster onboarding experience.***
 

content/arduino-cloud/10.education/01.shared-spaces/content.md

@@ -17,7 +17,7 @@ A **shared space** is a virtual classroom environment where you can optimize cla
 
 In this article, we're spilling the beans on all the necessary tips and tricks you could do with a shared space and how to set it up for your classroom. Let's get started! 
 
-***Note: In order to get started with Arduino Cloud, you need to [have an Arduino account](https://login.arduino.cc/login). If you do not have an account yet, feel free to create a new one. You can follow [this tutorial](https://support.arduino.cc/hc/en-us/articles/360016724040-Create-an-Arduino-account) for a step-by-step explanation on how to do it.***
+***Note: In order to get started with Arduino Cloud, you need to [have an Arduino account](https://login.arduino.cc/login) and a Team, Custom or School cloud plan. If you do not have an account yet, feel free to create a new one. You can follow [this tutorial](https://support.arduino.cc/hc/en-us/articles/360016724040-Create-an-Arduino-account) for a step-by-step explanation on how to do it.***
 
 ## What you will learn 
 
@@ -193,7 +193,7 @@ If you have more than three spaces, there will be pop up listing out all the sha
 
 ![More than three spaces preview](assets/mote-than-3.png)
 
-***Note: with a Free Plan or School Plan there are no limitations in the number of shared spaces you can have.***
+***Note: with a School Plan there are no limitations in the number of shared spaces you can have.***
 
 ### Keep track on plan usage