chore(pull): merge #7

7: docs(preset): add the "spooky_manor" preset r=orhun a=tranzystorek-io

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## Description

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Adds the somewhat spooky and unpolished preset I've taken a liking to.

I only hope this isn't just some quirky side-effect of #3.

## Motivation and Context

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## How Has This Been Tested?

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## Types of Changes

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- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)
- [x] Documentation (no code change)
- [ ] Refactor (refactoring production code)
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## Checklist:

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- [ ] My code follows the code style of this project.
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- [ ] I have added tests to cover my changes.
- [ ] All new and existing tests passed.


Co-authored-by: Marcin Puc <tranzystorek.io@protonmail.com>

README.md

@@ -179,6 +179,12 @@ Generate a **boss stage music** with the volume of 65:
 linuxwave -s 0,7,1 -n 60 -v 65 -o boss.wav
 ```
 
+Generate a **spooky low-fidelity music** with a sample rate of 1000 Hz, 4-channel output:
+
+```sh
+linuxwave -s 0,1,5,3 -n 100 -r 1000 -v 55 -c 4 -o spooky_manor.wav
+```
+
 Feel free to [submit a pull request](CONTRIBUTING.md) to show off your preset here!
 
 Also, see [this discussion](https://github.com/orhun/linuxwave/discussions/1) for browsing the music generated by our community.