Add berlin event (#542)

* Update 2024-cloud-native-sustainability-week.md

I'll have further details very soon, but want to get it on the calendar 

Signed-off-by: Chris Chinchilla <chris@chrischinchilla.com>

* Update website/content/en/events/2024-cloud-native-sustainability-week.md

Signed-off-by: Kristina Devochko <47773700+guidemetothemoon@users.noreply.github.com>

---------

Signed-off-by: Chris Chinchilla <chris@chrischinchilla.com>
Signed-off-by: Kristina Devochko <47773700+guidemetothemoon@users.noreply.github.com>
Co-authored-by: Kristina Devochko <47773700+guidemetothemoon@users.noreply.github.com>

website/content/en/events/2024-cloud-native-sustainability-week.md

@@ -44,6 +44,7 @@ After the successful [Sustainability Week 2023](https://tag-env-sustainability.c
 | 14 | Lorient, FR | Sept. 25 | [Link](https://community.cncf.io/events/details/cncf-lorient-presents-cloud-native-lorient-5/) | Sébastien DAVOULT [cloud Native Lorient](https://community.cncf.io/lorient/)
 | 15 | Barcelona, Spain | October 9th | [Link](https://community.cncf.io/events/details/cncf-cloud-native-barcelona-presents-cloud-native-sustainability-week-2024-barcelona-edition/) - [Link](https://www.meetup.com/cloud-native-bcn/events/303352183) | Christian Polanco, Imma Valls
 | 16 | Karlsruhe, Germany | Oct. 15 | [Link](https://www.meetup.com/gsf-brighton/events/303193268) | Aydin Mir Mohammadi, [Green Software Development Karlsruhe](https://www.meetup.com/green-software-development-karlsruhe)
+| 17 | Berlin, Germany | Oct. 17 | TBD | Chris Chinchilla, plus others TBD
 <!-- cSpell:enable -->
 
 ## Event Goals