Improve 'free' language selecting space or instance

Author: PhilReedData

TeSS_docs/spaces/instance-or-space.md

@@ -8,7 +8,7 @@ TeSS is an open source, reusable software platform, and has been [deployed by se
 - {fas}`clipboard-check;sd-text-success` Appears as its own distinct catalogue
 - {fas}`clipboard-check;sd-text-success` Can exchange materials with other TeSS instances and spaces
 - {fas}`clipboard-check;sd-text-success` Support from the global TeSS community
-- {fas}`clipboard-check;sd-text-success` Free[^freespace] to run and use
+- {fas}`clipboard-check;sd-text-success` Open and public to run and use[^freespace]
 - {fas}`clipboard-check;sd-text-success` No installation or server required
 - {fas}`clipboard-question;sd-text-warning`  Limited technical customisation options  
 
@@ -18,9 +18,9 @@ TeSS is an open source, reusable software platform, and has been [deployed by se
 - {fas}`clipboard-check;sd-text-success` Appears as its own distinct catalogue
 - {fas}`clipboard-check;sd-text-success` Can exchange materials with other TeSS instances and spaces
 - {fas}`clipboard-check;sd-text-success` Support from the global TeSS community
-- {fas}`clipboard-check;sd-text-success` Free[^freeinstance], open source software
+- {fas}`clipboard-check;sd-text-success` Open source software[^freeinstance] 
 - {fas}`clipboard-check;sd-text-success` Can be fully customised by your own development team
 - {fas}`clipboard-question;sd-text-warning` Requires installation and server administration (at your expense)
 
 [^freespace]: The TeSSHub does not charge for space creation but is dependent on overall funding. Other multi-space TeSS instances may vary. 
-[^freeinstance]: The TeSS Platform software is freely licensed but you must cover server and administration costs.
+[^freeinstance]: The [TeSS Platform software is open source](https://github.com/ElixirTeSS/TeSS) [(BSD 3-clause license)](https://tess.elixir-europe.org/about/developers#api:~:text=available%20under%20the-,BSD%203%2DClause,-license.) but you must cover server and administration costs.