Breaking
* fix!: remove `dotenv_overwrites_memory`. This option gives a lot of headaches for custom final loaders.
For now on, Stela will always overwrite the `os.environ` values with the ones found in the dotenv files.
This is a BREAKING CHANGE. ([`abcb68c`](https://github.com/megalus/stela/commit/abcb68c0bcd50b6085fda3a55ffd8c3e77e53069))
Documentation
* docs: Update README.md ([`0213495`](https://github.com/megalus/stela/commit/02134952300979d6c8ab87b13b9d11e07080e231))