Anchors not working on single HTML pages
# Problem
Markdown Links containing anchors are not working on *-page.mds.
Links like: ```[I am an anchor](#ref)``` are parsed to ```<a href="#/ref">I am an anchor</a>``` which does not link on single html pages.
# Reproduction
1. Create a my-page.md
2. Copy & Paste:
```
[I am an anchor](#ref) is parsed to <a href="#/ref">I am not working</a> correct would be <a href="#ref">I am working</a>
## Ref
```
# Decker version
```
decker version 0.10.0 (branch: master, commit: 02b22a46c00dabd8aabb13246178f69ee58f8982, tag: undefined, build date: 2020-11-09)
pandoc version 2.9.1.1
pandoc-types version 1.20
```
issue