Acknowledgment to SwissTwins (#61)

* Acknowledgment to SwissTwins

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

README.md

@@ -215,3 +215,6 @@ If these tests pass and the bug persists, consider providing a `config` file to
 
 If the bug persists and test still passes, then most certainly it's a problem of `aiida-firecrest`.
 If not, probably the issue is from FirecREST, you might open an issue to [pyfirecrest](https://github.com/eth-cscs/pyfirecrest) or [`FirecREST`](https://github.com/eth-cscs/firecrest).
+
+### Acknowledgment:
+This project is supported by SwissTwins fundings.