docs: add Bitbucket organization-level configuration documentation

docs/docs/usage-guide/configuration_options.md

@@ -69,3 +69,27 @@ For example, in the GitHub organization `Codium-ai`:
 - The file [`https://github.com/Codium-ai/pr-agent-settings/.pr_agent.toml`](https://github.com/Codium-ai/pr-agent-settings/blob/main/.pr_agent.toml)  serves as a global configuration file for all the repos in the GitHub organization `Codium-ai`.
 
 - The repo [`https://github.com/Codium-ai/pr-agent`](https://github.com/Codium-ai/pr-agent/blob/main/.pr_agent.toml) inherits the global configuration file from `pr-agent-settings`.
+
+### Bitbucket Organization level configuration file 💎
+`Relevant platforms: Bitbucket Cloud, Bitbucket Data Center`
+
+In Bitbucket, there are two levels where you can define a global configuration file:
+
+* Project-level global configuration:
+
+Create a repository named `pr-agent-settings` within a specific project. The configuration file in this repository will apply to all repositories under the same project.
+
+* Organization-level global configuration:
+
+Create a dedicated project to hold a global configuration file that affects all repositories across all projects in your organization.
+
+**Setting up organization-level global configuration:**
+
+1.	Create a new project with both the name and key: PR_AGENT_SETTINGS.
+2.	Inside the PR_AGENT_SETTINGS project, create a repository named pr-agent-settings.
+3.	In this repository, add a .pr_agent.toml configuration file—structured similarly to the global configuration file described above.
+
+Repositories across your entire Bitbucket organization will inherit the configuration from this file.
+
+!!! note "Note"
+If both organization-level and project-level global settings are defined, the project-level settings will take precedence over the organization-level configuration. Additionally, parameters from a repository’s local .pr_agent.toml file will always override both global settings.