Disambiguate initial commit message for Guacamole recipe

[mahermanns]

If this pull request addresses an open issue on the repository, please add 'Closes #NN' below, where NN is the issue number.

Fixes #1073

Please briefly summarise the changes made in the pull request, and the reason(s) for making these changes.

Instead of using the term template, the episode explicitly states in the initial commit message that it is the initial structure for our first recipe, being a Guacamole recipe.

If any relevant discussions have taken place elsewhere, please provide links to these.

This topic came up in my teaching demo today, where @dpshelio suggested I propose a change, following what I did (in initially creating a file template.md). Contemplating a bit, this adds more action items to the episode, so I would now propose to rather fix the initial commit message instead, keeping the overall number of action items in the episode the same.

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[github-actions]

🆗 Pre-flight checks passed 😃

This pull request has been checked and contains no modified workflow files, spoofing, or invalid commits.

It should be safe to Approve and Run the workflows that need maintainer approval.

[martinosorb]

I don't see why not.
Thank you.

[dpshelio]

Beautiful!! Thanks @mahermanns!!! 🚀