Fix raw html for Acknowledgements (#366)

* Fix raw html in Acknowledgements

* Change structure of acknowledgements

* Fix raw html for acknowledgements

Author: albertomercurio

docs/src/resources/acknowledgements.md

@@ -4,18 +4,22 @@
 
 `QuantumToolbox.jl` is supported by the [Unitary Fund](https://unitary.fund), a grant program for quantum technology projects.
 
+```@raw html
 <div align="center">
   <a href="https://unitary.fund">
     <img src="https://raw.githubusercontent.com/unitaryfund/unitary.fund/refs/heads/main/src/assets/svg/logo.svg" alt="Unitary Fund logo" width="200">
   </a>
 </div>
+```
 
 ## [Other Acknowledgements](@id doc:Other-Acknowledgements)
 
 We are also grateful to the [Zulip](https://zulip.com) team for providing a free chat service for open-source projects.
 
+```@raw html
 <div align="center">
   <a href="https://zulip.com">
     <img src="https://zulip.com/static/images/logo/zulip-org-logo.svg" alt="Zulip logo" width="200">
   </a>
 </div>
+```