New block behaviour and repository layout

[LesML] / TESTING / 📤 / empty-para

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<div xmlns="http://www.w3.org/1999/xhtml"><article lang="en" xml:lang="en"><div class="body"><p>Empty paragraphs are kept around :⁠—</p><p/><p>Except when starting containers :⁠—</p><blockquote id="blockquote-id" lang="en" xml:lang="en"><p/><p>(but other ones stay)</p><p/></blockquote><p>but conversely…</p><blockquote><p id="do-not-assign-to-containing-blockquote" lang="en" xml:lang="en"/></blockquote></div></article></div>