README.md added

Author: dconeybe

firebase-dataconnect/ci/README.md

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+# Firebase Data Connect Android SDK Continuous Integration Scripts
+
+These scripts are used by GitHub Actions.
+
+There are GitHub Actions workflows that verify code formatting, lint checks, type annotations,
+and running unit tests.
+
+The minimum required Python version (at the time of writing, April 2025) is 3.13.
+See `pyproject.toml` for the most up-to-date requirement.
+
+To set up Python, install the required dependencies by running:
+
+```
+pip install -r requirements.txt
+```
+
+Then, run all of these presubmit checks by running the following command:
+
+```
+ruff check --fix && ruff format && pyright && pytest && echo 'SUCCESS!!!!!!!!!!!!!!!'
+```