Add references

[smartie2076]

Changes proposed in this pull request: [x] Add reference for AHK Chile project

• [ ] Add reference D4.4 (missing: link)
• [x] Add reference for product sheet
• [ ] Update Marie Gering entry
• [ ] Update Andra Backhaus entry

The following steps were realized, as well (if applies): :x: Use in-line comments to explain your code :x: Write docstrings to your code (example docstring) :x: For new functionalities: Explain in readthedocs :x: Write test(s) for your new patch of code (pytests, assertion debug messages)

• [ ] Update the CHANGELOG.md :x: Apply black (black . --exclude docs/) :x: Check if benchmark tests pass locally (EXECUTE_TESTS_ON=master pytest)

[Bachibouzouk]

@smartie2076 - can we merge this? Or you wanted to add more things?

[smartie2076]

@smartie2076 - can we merge this? Or you wanted to add more things?

@Bachibouzouk you can merge it now, added some further references