<p>This is <ins>added text</ins></p>

This is ++added text++

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE document SYSTEM "CommonMark.dtd">
<document xmlns="http://commonmark.org/xml/1.0">
  <paragraph>
    <text xml:space="preserve">This is </text>
    <insert>
      <text xml:space="preserve">added text</text>
    </insert>
  </paragraph>
</document>

<p>This is <ins>important!</ins>.</p>
<p>This is <ins>very important</ins> OK?</p>
<p><ins>It is a
shrubbery</ins></p>
<p>Vendo <ins>Opel Corsa <strong>em bom estado</strong></ins></p>
<p>Ceci n'est pas +important+</p>

This is ++important\!++.

This is ++very important++ OK?

++It is a
shrubbery++

Vendo ++Opel Corsa **em bom estado**++

Ceci n'est pas +important+

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE document SYSTEM "CommonMark.dtd">
<document xmlns="http://commonmark.org/xml/1.0">
  <paragraph>
    <text xml:space="preserve">This is </text>
    <insert>
      <text xml:space="preserve">important!</text>
    </insert>
    <text xml:space="preserve">.</text>
  </paragraph>
  <paragraph>
    <text xml:space="preserve">This is </text>
    <insert>
      <text xml:space="preserve">very important</text>
    </insert>
    <text xml:space="preserve"> OK?</text>
  </paragraph>
  <paragraph>
    <insert>
      <text xml:space="preserve">It is a</text>
      <softbreak />
      <text xml:space="preserve">shrubbery</text>
    </insert>
  </paragraph>
  <paragraph>
    <text xml:space="preserve">Vendo </text>
    <insert>
      <text xml:space="preserve">Opel Corsa </text>
      <strong>
        <text xml:space="preserve">em bom estado</text>
      </strong>
    </insert>
  </paragraph>
  <paragraph>
    <text xml:space="preserve">Ceci n'est pas +important+</text>
  </paragraph>
</document>