diff --git a/docs/articles/how-to-use-this-package.html b/docs/articles/how-to-use-this-package.html
index be68566..fdf94b5 100644
--- a/docs/articles/how-to-use-this-package.html
+++ b/docs/articles/how-to-use-this-package.html
@@ -80,7 +80,7 @@
       <h1>Vignette Title</h1>
                         <h4 class="author">Vignette Author</h4>
             
-            <h4 class="date">2019-05-28</h4>
+            <h4 class="date">2019-05-29</h4>
       
       <small class="dont-index">Source: <a href="https://github.com/hauselin/hausekeep/blob/master/vignettes/how-to-use-this-package.Rmd"><code>vignettes/how-to-use-this-package.Rmd</code></a></small>
       <div class="hidden name"><code>how-to-use-this-package.Rmd</code></div>
diff --git a/docs/reference/zscore.html b/docs/reference/zscore.html
index 2ad51c4..4838b6b 100644
--- a/docs/reference/zscore.html
+++ b/docs/reference/zscore.html
@@ -122,7 +122,7 @@ <h1>Compute z-score</h1>
     
     </div>
 
-    <pre class="usage"><span class='fu'>zscore</span>(<span class='no'>x</span>, <span class='no'>n</span>)</pre>
+    <pre class="usage"><span class='fu'>zscore</span>(<span class='no'>x</span>, <span class='kw'>n</span> <span class='kw'>=</span> <span class='fl'>0</span>)</pre>
     
     <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
     <table class="ref-arguments">
@@ -133,7 +133,7 @@ <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arg
     </tr>
     <tr>
       <th>n</th>
-      <td><p>use n or n-1 in the denominator when computing SD (default 0 for n; -1 for n = -1)</p></td>
+      <td><p>use n or n-1 in the denominator when computing SD (default 0 for n; use -1 for n = -1)</p></td>
     </tr>
     </table>