docs: update the code of conduct

Signed-off-by: Emmanuel Ferdman <[email protected]>

README.md

@@ -210,7 +210,7 @@ This allows you to iterate locally and deploy remotely by changing a single line
 Ibis is an open source project and welcomes contributions from anyone in the community.
 
 - Read [the contributing guide](https://github.com/ibis-project/ibis/blob/main/docs/CONTRIBUTING.md).
-- We care about keeping the community welcoming for all. Check out [the code of conduct](https://github.com/ibis-project/ibis/blob/main/docs/CODE_OF_CONDUCT.md).
+- We care about keeping the community welcoming for all. Check out [the code of conduct](https://github.com/ibis-project/ibis/blob/main/CODE_OF_CONDUCT.md).
 - The Ibis project is open sourced under the [Apache License](https://github.com/ibis-project/ibis/blob/main/LICENSE.txt).
 
 Join our community by interacting on GitHub or chatting with us on [Zulip](https://ibis-project.zulipchat.com/).