Update docs/self-hosted/bitbucket.md

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: alexcoderabbitai

docs/self-hosted/bitbucket.md

@@ -83,7 +83,7 @@ LINEAR_PAT=[<linear-personal-access-token>]
 :::note
 
 - If you are using Azure OpenAI, verify that the model deployment names are in the .env file.
-- Values marked with [] are not optional to provide.
+Values marked with [] are optional and can be omitted if the feature is not needed.
 - You can generate `CODERABBIT_API_KEY` from CodeRabbit UI -> Organizations Settings -> API Keys.
 
 :::