Add share links at the end of the tutorial

[newtoallofthis123]

What kind of changes does this PR include?

• Changes to the docs site code

Description

This adds two simple buttons to the end of tutorial. No external styles or anything, just imports the standard button component and passing in the share links with the following text URL encoded

Just finished learning how to build my first Astro blog! 

Check it out at https://docs.astro.build/!

Here's a screenshot of the website

I took the creative liberty of adding the text to invite the user to share, please do tell me if you want me to change it, but I think it's fun 😄

Congratulations on completing the Astro blog tutorial! Share your achievement with the world and let everyone know you’re an 🧑‍🚀Astronaut now!

Related Issue / Implementation PR

• Closes Issue Share links at end of tutorial #4044

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[dreyfus92]

LGTM ✅

[dreyfus92]

I just noticed we could flex the buttons @newtoallofthis123, we should ask @Otterlord what he thinks about the current orientation of that block and verify if the responsive design works for small screen sizes.

[newtoallofthis123]

I checked the responsiveness, it worked well because I just used the already existing responsive <Button /> component. Yeah actually, I just left a comment on his original issue. Let's see what he has to say. Thanks for the review :)

[TheOtterlord]

Thanks so much for working on this @newtoallofthis123!

On responsiveness, we do use a similar button setup on the getting started page, which wraps the buttons in a div with some flex styling. I've made a suggestion below, with some resulting screenshots. I've also added a small suggestion to the message.

[newtoallofthis123]

Hey @TheOtterlord! Just made the changes you recommended :)

[TheOtterlord]

Thanks! This looks great 🙌

[newtoallofthis123]

Thanks 😄