Update README.md

Author: rg2011

python-lib/tc_etl_lib/README.md

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 ## Changelog
 
+- Add: new optional parameter called `replace_id` in sqlFileStore context manager ([#58](https://github.com/telefonicasc/etl-framework/pull/58))
+
 0.7.0 (December 233rd, 2022)
 
 - Add: new stores for saving entity batches, `orionStore` and `sqlFileStore` ([#46](https://github.com/telefonicasc/etl-framework/pull/46))