fixed the "learn how this is implemented" link inside of the mastodon… (#894)

….html file

### Prerequisites

Put an `x` into the box(es) that apply:

- [ x] This pull request fixes a bug.
- [ ] This pull request adds a feature.
- [ ] This pull request introduces breaking change.

### Description

Fixed the issue inside of mastodon.html file where the "Learn how this
is implemented" link does not work.

### Issues Resolved

Fixed the issue inside of mastodon.html file where the "Learn how this
is implemented" link does not work.

### Checklist

Put an `x` into the box(es) that apply:

#### General

- [x] Describe what changes are being made
- [x] Explain why and how the changes were necessary and implemented
respectively
- [ ] Reference issue with `#<ISSUE_NO>` if applicable

#### Resources

- [ ] If you have changed any SCSS code, run `make release` to
regenerate all CSS files

#### Contributors

- [ ] Add yourself to `CONTRIBUTORS.md` if you aren't on it already

Co-authored-by: Nicolas Prothero <“nprothero0917@gmail.comgit config --global user.name “Nicolas Prothero>