Atlas Cove

Update jekyll/converters/textile.rb

1

Added (untested) support for arrays.

Typo fix in comment of configuration.go

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Simple, one-line change that fixes a single typo in configuration.go.

## Adding a language - [X] The code displays "Hello World" ([tio.run](https://tio.run) may help for testing) - [X] I have no association with the language - [X] There are no...

Changed definition list output for textile.

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Requesting a code review, I've merely copied over org's definition and changed it slightly as they are almost syntactically identical.

Added additional logic so that the cli tool can be invoked as both ```shell vtracer --input input.png --output output.svg ``` and ```shell vtracer input.png output.svg ````