add break to affiliation posterdown_html
diff --git a/inst/rmarkdown/templates/posterdown_html/resources/template.html b/inst/rmarkdown/templates/posterdown_html/resources/template.html
index 45db9bc..1ece3ac 100644
--- a/inst/rmarkdown/templates/posterdown_html/resources/template.html
+++ b/inst/rmarkdown/templates/posterdown_html/resources/template.html
@@ -320,7 +320,7 @@
<div class= "poster_title">
$if(title)$<h1 id="title">$title$</h1>$endif$
$if(author)$<h3 id="author">$for(author)$$author.name$<sup>$author.affil$$if(author.orcid)$, <a class="orcid" href="https://orcid.org/$author.orcid$"><img src="https://raw.githubusercontent.com/brentthorne/posterdown/master/images/orcid.jpg"></a>$else$$endif$</sup>$sep$, $endfor$</h3><br>$endif$
-$if(affiliation)$<h5 id="affiliation">$for(affiliation)$<sup>$affiliation.num$</sup> $affiliation.address$$sep$, $endfor$</h5>$endif$
+$if(affiliation)$<h5 id="affiliation">$for(affiliation)$<sup>$affiliation.num$</sup> $affiliation.address$$sep$<br> $endfor$</h5>$endif$
</div>
<!-- Right Logo -->
<div class="logo_right">