fix: holopin formatting

[mikeee]

Description

I believe this is a formatting issue. Updating the holopin badge

Issue reference

This PR is linked to #164

Checklist

• [ ] Code compiles correctly
• [ ] Created/updated tests
• [ ] Extended the documentation

[KentHsu]

Hi @mikeee, Sorry I didn't notice the formatting but I found this PR in go-sdk has the same issue. Hope we can avoid the same mistake there.

[mikeee]

I'm not sure if it matters with yaml, I think I'm unable to issue stickers as I'm not part of the holopin org 👍

[marcduiker]

The formatting is not an issue. See the Holopin bot readme