Add content to credit page

Author: PhilReedData

TeSS_docs/spaces/credit.md

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-# How to credit TeSS when you make your own instance
+# How to credit TeSS when you make your own instance
+
+You are welcome to use the TeSS platform software however you like within the terms of its licence. 
+However, we have an extensive community of users and developers which you are welcome to join. They can offer you support and guidance throughout the setup process and thereafter.
+
+If you are maintaining an instance of TeSS, or thinking of doing so, please [contact us](https://tess.elixir-europe.org/about/us#contact). We will help you to effectively credit the TeSS developers and community.
+

TeSS_docs/spaces/instance-or-space.md

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-# When to choose your own TeSS instance or register a space in TeSSHub
+# When to choose your own TeSS instance or register a space in TeSSHub
+
+TeSS is an open source, reusable software platform, and has been [deployed by several other communities across the globe](../overview/tess#global-instances-of-tess). However, with the launch of the [Spaces feature](intro-spaces), it is possible for a community to create their own tailored catalogue or "view" within an existing TeSS instance. The TeSSHub is a public instance that supports the Spaces feature (launching soon).
+
+
+## Why register a space with TeSSHub?
+
+- ✅ Appears as its own distinct catalogue
+- ✅ Can exchange materials with other TeSS instances and spaces
+- ✅ Support from the global TeSS community
+- ✅ Free to run and use
+- ✅ No installation or server required
+- ❎ Limited technical customisation options  
+
+
+## Why create your own TeSS instance?
+
+- ✅ Appears as its own distinct catalogue
+- ✅ Can exchange materials with other TeSS instances and spaces
+- ✅ Support from the global TeSS community
+- ✅ Free, open source software
+- ✅ Can be fully customised by your own development team
+- ❎ Requires installation and server administration (at your expense)

TeSS_docs/spaces/intro-spaces.md

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-# Introduction to spaces
+# Introduction to spaces
+
+A single TeSS instance can present multiple tailored catalogues whose selections of training material are “views” on a global catalogue. 
+Each community registers, maintains and curates their material for their members in their own virtual space in the common portal environment.
+
+This new feature is possible thanks to the [mTeSS-X project](https://elixirtess.github.io/mTeSS-X/). Catalogues are pooled into a shared instance but look to their community as if they have their own catalogue with their own identity.
+