Matt Wang e2f1546c61
mermaid: refactor config to use mermaid_config.js include, only require mermaid.version in _config.yml (#909)
This PR has a bit of scope creep! This PR now:

- changes the mermaid opt-in logic to only check for the existence of a `mermaid` key instead of `mermaid != false`: this resolves the follow-up in #857
- changes the behaviour of mermaid configuration
    - instead of using `mermaid_init.html` with default settings, makes the include `mermaid_config.js`
    - the include is loaded directly into the contents of `mermaid_initialize`
    - by default, it is an empty object (i.e. `{}`), triggering the defaults
- updates docs
- adds an example to the markdown kitchen sink  

It does significantly change the interface provided in #857, and I apologize for the confusion. However, given the discussion in this PR, I think it's the best move forward!
2022-08-11 19:34:15 -07:00

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HTML

<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
{% unless site.plugins contains "jekyll-seo-tag" %}
<title>{{ page.title }} - {{ site.title }}</title>
{% if page.description %}
<meta name="Description" content="{{ page.description }}">
{% endif %}
{% endunless %}
{% include favicon.html %}
<link rel="stylesheet" href="{{ '/assets/css/just-the-docs-default.css' | relative_url }}">
{% if site.ga_tracking != nil %}
<script async src="https://www.googletagmanager.com/gtag/js?id={{ site.ga_tracking }}"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', '{{ site.ga_tracking }}'{% unless site.ga_tracking_anonymize_ip == nil %}, { 'anonymize_ip': true }{% endunless %});
</script>
{% endif %}
{% if site.search_enabled != false %}
<script type="text/javascript" src="{{ '/assets/js/vendor/lunr.min.js' | relative_url }}"></script>
{% endif %}
{% if site.mermaid %}
<script src="https://cdn.jsdelivr.net/npm/mermaid@{{ site.mermaid.version }}/dist/mermaid.min.js"></script>
{% endif %}
<script type="text/javascript" src="{{ '/assets/js/just-the-docs.js' | relative_url }}"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
{% seo %}
{% include head_custom.html %}
</head>