<commit_before><commit_msg>Add 0.9.2 release notes<commit_after>### Changes
- Change `Option` decoder to work on missing keys. ([#128][#128])

### Documentation
- Change to clarify `Option` decoding, and use of `ConfigValue#orElse` and `orNone`. ([#128][#128])
- Add note on which `ConfigError`s to return for custom configuration sources. ([#128][#128])
- Add note on `ciris-generic` potentially overriding other behaviours. ([#129][#129])

### Miscellaneous
- Remove `ciris-generic` default import in try scripts. ([#129][#129])
- Update Ammonite in try scripts to 1.1.0. ([#126][#126])
- Update SBT to 1.1.2. ([#127][#127])

[#126]: https://github.com/vlovgr/ciris/pull/126
[#127]: https://github.com/vlovgr/ciris/pull/127
[#128]: https://github.com/vlovgr/ciris/pull/128
[#129]: https://github.com/vlovgr/ciris/pull/129
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{'dir': 'git-commits-cleaned', 'id': '194035', 'n_tokens_mistral': 346, 'n_tokens_neox': 284, 'n_words': 78}