How-to-prepare-the-code-for-a-release.md

 Here is the checklist to run before releasing a new version for mbtrack2:
-- run the ypaf formatter
-`yapf -ri .\mbtrack2\`
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+
+- run the ypaf formatter `yapf -ri .\mbtrack2\`
+
+Poetry:
+
+Update the pyproject.toml file with version number, new dependencies and run:
+
+```
+poetry env use python
+poetry install
+poetry build
+poetry publish
+```
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