32 GitHub desktop startup post

[aassuied-ps]

Closes #32

I did not want to be very exaustive for the user to not be swarmed. Please tell me if it's enough.

[kieranjmartin]

@aassuied-ps this looks great, if you're happy I will merge this!

[aassuied-ps]

Thanks @kieranjmartin, you can merge it. I only added the list of supported editors:

::: callout-tip
## Supported editors

The list of supported editors is available [here](https://docs.github.com/en/desktop/configuring-and-customizing-github-desktop/configuring-a-default-editor-in-github-desktop?platform=windows "https://docs.github.com").
:::