docs(ecosystem.md): implement changes requested by olivierlambert

Signed-off-by: Thomas Moraine <thomas.moraine@vates.tech>

Author: thomas-dkmt

docs/project/ecosystem.md

@@ -0,0 +1,10 @@
+---
+title: 'Ecosystem'
+---
+# XCP-ng Ecosystem
+
+:::tip
+We've moved the contents of this page to the [Vates VMS documentation](https://docs.vates.tech/), where we now gather everything related to Vates ecosystems and cross-disciplinary topics. 
+
+[Head there](https://docs.vates.tech/category/ecosystems) to explore how XCP-ng fits into the broader Vates ecosystem and discover all the integrations that connect our solutions together.
+:::