Fix typo on Narwhals name (#183)

Author: cmaureir

content/about/sprints.md

@@ -27,7 +27,7 @@ Below is the list of projects that will be participating in the sprint. If you a
 
 e.g. ```<<Project name with link to project repo>> (contact: <<@DiscordHandle>>, active timezone: <<AMER/EMEA/APAC>>)```
 
-- [Nawhals](https://github.com/narwhals-dev/narwhals) (contact: @Cheukting, active timezone: EMEA)
+- [Narwhals](https://github.com/narwhals-dev/narwhals) (contact: @Cheukting, active timezone: EMEA)
 - [Python Doc ES](https://github.com/python/python-docs-es/) (contact: @sofide, active timezone: GMT-3)
 - [Skrub](https://skrub-data.org/) (contact: @jeromedockes, active timezone: EMEA)
-- [Fairlearn](https://github.com/fairlearn/fairlearn) (contact: @tamaraatanasoska active timezone EMEA)
+- [Fairlearn](https://github.com/fairlearn/fairlearn) (contact: @tamaraatanasoska active timezone EMEA)