Removed mentions of free plan usage

Author: BenjaminDannegard

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

@@ -56,7 +56,7 @@ In the next sections we will take you through setting up a shared space for your
 
 ## Create a Shared Space 
 
-Creating a shared space is simple and straightforward, however it requires you to have an Arduino account before you can get started. If you haven't created any in the past, [create one](https://support.arduino.cc/hc/en-us/articles/360016724040-Create-an-Arduino-account) now! 
+Creating a shared space is simple and straightforward, however it requires you to have an Arduino account and either a Business plan or School Plan before you can get started. If you haven't created any in the past, [create one](https://support.arduino.cc/hc/en-us/articles/360016724040-Create-an-Arduino-account) now!
 
 ### Login to your Private Space
 
@@ -157,7 +157,7 @@ Once they click **Join**, they will then be added to your shared space and be vi
 
 ## Space Settings 
 
-In space settings, you can configure everything from `Change Image` of your space profile to adding and removing members. If you have a free plan you can also track the usage of the Cloud tools and choose to upgrade to a School plan. 
+In space settings, you can configure everything from `Change Image` of your space profile to adding and removing members.
 
 To change the current settings of your shared space, navigate to the **Space Settings** tab using the sidebar.
 
@@ -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