Representation of Primary sources enhancement

Substitutions

Example provided by Stephanie Schlitz
<lb/>
<choice>
  <orig>syne
    <corr rend="supralinear">b</corr>
    kongs
    <corr rend="supralinear">a</corr>
  </orig>
  <reg>kongssyne</reg>
</choice>
<note>Written above <emph rend="italics">syne</emph> and 
  <emph rend="italics">kongs</emph> are 'b' and 'a', respectively, 
  apparently to correct <emph rend="italics">syne kongs</emph> 
  to <emph rend="italics">kongssyne</emph>
</note>