Parse minister-clause.

[helgihg]

What we call a "minister-clause" is currently a kind of metadata present early in each legal document.

Example:

<minister-clause>&lt;a href=&quot;https://www.althingi.is/thingstorf/thingmalalistar-eftir-thingum/ferill/?ltg=83&amp;amp;mnr=54&quot;&gt; &lt;i&gt; Ferill málsins á Alþingi. &lt;/i&gt; &lt;/a&gt; &lt;a href=&quot;https://www.althingi.is/altext/pdf/83/s/0054.pdf&quot;&gt; &lt;i&gt; Frumvarp til laga. &lt;/i&gt; &lt;/a&gt; &lt;br/&gt; &lt;br/&gt; &lt;small&gt; &lt;b&gt; Felld úr gildi skv. &lt;a href=&quot;https://www.althingi.is/altext/stjt/2020.100.html&quot;&gt; l. 100/2020 &lt;/a&gt; , 111. gr. &lt;/b&gt; &lt;/small&gt;</minister-clause>

It is HTML which contains two valuable points of information:

1. A history of legal changes (not necessarily valuable since it's parsable from footnotes).
2. More importantly: Information about which ministry and minister the law refers to.

This information should be parsed and retained in formal XML instead of only human-readable HTML.