fix composing programs link

[edasmalchi]

Description

fix link to Composing Programs

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [x] Documentation

How has this been tested?

Include commands/logs/screenshots as relevant.

Post-merge follow-ups

Document any actions that must be taken post-merge to deploy or otherwise implement the changes in this PR (for example, running a full refresh of some incremental model in dbt). If these actions will take more than a few hours after the merge or if they will be completed by someone other than the PR author, please create a dedicated follow-up issue and link it here to track resolution.

• [ ] No action required
• [ ] Actions required (specified below)