diff --git a/articles/feature1_constantAttributes.html b/articles/feature1_constantAttributes.html
index 99abba2..7d74e4a 100644
--- a/articles/feature1_constantAttributes.html
+++ b/articles/feature1_constantAttributes.html
@@ -92,7 +92,7 @@ <h1 data-toc-skip>Sample modifiers in pepr: append</h1>
                         <h4 data-toc-skip class="author">Michal
 Stolarczyk</h4>
             
-            <h4 data-toc-skip class="date">2023-11-17</h4>
+            <h4 data-toc-skip class="date">2023-11-21</h4>
       
       <small class="dont-index">Source: <a href="https://github.com/pepkit/pepr/blob/HEAD/vignettes/feature1_constantAttributes.Rmd" class="external-link"><code>vignettes/feature1_constantAttributes.Rmd</code></a></small>
       <div class="hidden name"><code>feature1_constantAttributes.Rmd</code></div>
diff --git a/articles/feature2_impliedAttributes.html b/articles/feature2_impliedAttributes.html
index ffec6ae..1a83354 100644
--- a/articles/feature2_impliedAttributes.html
+++ b/articles/feature2_impliedAttributes.html
@@ -92,7 +92,7 @@ <h1 data-toc-skip>Sample modifiers in pepr: imply</h1>
                         <h4 data-toc-skip class="author">Michal
 Stolarczyk</h4>
             
-            <h4 data-toc-skip class="date">2023-11-17</h4>
+            <h4 data-toc-skip class="date">2023-11-21</h4>
       
       <small class="dont-index">Source: <a href="https://github.com/pepkit/pepr/blob/HEAD/vignettes/feature2_impliedAttributes.Rmd" class="external-link"><code>vignettes/feature2_impliedAttributes.Rmd</code></a></small>
       <div class="hidden name"><code>feature2_impliedAttributes.Rmd</code></div>
diff --git a/articles/feature3_derivedAttributes.html b/articles/feature3_derivedAttributes.html
index 21026db..2991aa7 100644
--- a/articles/feature3_derivedAttributes.html
+++ b/articles/feature3_derivedAttributes.html
@@ -92,7 +92,7 @@ <h1 data-toc-skip>Sample modifiers in pepr: derive</h1>
                         <h4 data-toc-skip class="author">Michal
 Stolarczyk</h4>
             
-            <h4 data-toc-skip class="date">2023-11-17</h4>
+            <h4 data-toc-skip class="date">2023-11-21</h4>
       
       <small class="dont-index">Source: <a href="https://github.com/pepkit/pepr/blob/HEAD/vignettes/feature3_derivedAttributes.Rmd" class="external-link"><code>vignettes/feature3_derivedAttributes.Rmd</code></a></small>
       <div class="hidden name"><code>feature3_derivedAttributes.Rmd</code></div>
diff --git a/articles/feature4_derivedImpliedAttributes.html b/articles/feature4_derivedImpliedAttributes.html
index b8ce6c0..e828bc0 100644
--- a/articles/feature4_derivedImpliedAttributes.html
+++ b/articles/feature4_derivedImpliedAttributes.html
@@ -92,7 +92,7 @@ <h1 data-toc-skip>Sample modifiers in pepr: imply and derive</h1>
                         <h4 data-toc-skip class="author">Michal
 Stolarczyk</h4>
             
-            <h4 data-toc-skip class="date">2023-11-17</h4>
+            <h4 data-toc-skip class="date">2023-11-21</h4>
       
       <small class="dont-index">Source: <a href="https://github.com/pepkit/pepr/blob/HEAD/vignettes/feature4_derivedImpliedAttributes.Rmd" class="external-link"><code>vignettes/feature4_derivedImpliedAttributes.Rmd</code></a></small>
       <div class="hidden name"><code>feature4_derivedImpliedAttributes.Rmd</code></div>
diff --git a/articles/feature5_sampleSubtable.html b/articles/feature5_sampleSubtable.html
index 1f36581..217cb6d 100644
--- a/articles/feature5_sampleSubtable.html
+++ b/articles/feature5_sampleSubtable.html
@@ -92,7 +92,7 @@ <h1 data-toc-skip>Subsample table in pepr</h1>
                         <h4 data-toc-skip class="author">Michal
 Stolarczyk &amp; Nathan Sheffield</h4>
             
-            <h4 data-toc-skip class="date">2023-11-17</h4>
+            <h4 data-toc-skip class="date">2023-11-21</h4>
       
       <small class="dont-index">Source: <a href="https://github.com/pepkit/pepr/blob/HEAD/vignettes/feature5_sampleSubtable.Rmd" class="external-link"><code>vignettes/feature5_sampleSubtable.Rmd</code></a></small>
       <div class="hidden name"><code>feature5_sampleSubtable.Rmd</code></div>
diff --git a/articles/feature6_amendments.html b/articles/feature6_amendments.html
index 86d9ee4..c9f1b53 100644
--- a/articles/feature6_amendments.html
+++ b/articles/feature6_amendments.html
@@ -92,7 +92,7 @@ <h1 data-toc-skip>Amendments in pepr</h1>
                         <h4 data-toc-skip class="author">Michal
 Stolarczyk</h4>
             
-            <h4 data-toc-skip class="date">2023-11-17</h4>
+            <h4 data-toc-skip class="date">2023-11-21</h4>
       
       <small class="dont-index">Source: <a href="https://github.com/pepkit/pepr/blob/HEAD/vignettes/feature6_amendments.Rmd" class="external-link"><code>vignettes/feature6_amendments.Rmd</code></a></small>
       <div class="hidden name"><code>feature6_amendments.Rmd</code></div>
diff --git a/articles/gettingStarted.html b/articles/gettingStarted.html
index 0f2a85f..00bb362 100644
--- a/articles/gettingStarted.html
+++ b/articles/gettingStarted.html
@@ -92,7 +92,7 @@ <h1 data-toc-skip>Getting Started with pepr</h1>
                         <h4 data-toc-skip class="author">Nathan
 Sheffield</h4>
             
-            <h4 data-toc-skip class="date">2023-11-17</h4>
+            <h4 data-toc-skip class="date">2023-11-21</h4>
       
       <small class="dont-index">Source: <a href="https://github.com/pepkit/pepr/blob/HEAD/vignettes/gettingStarted.Rmd" class="external-link"><code>vignettes/gettingStarted.Rmd</code></a></small>
       <div class="hidden name"><code>gettingStarted.Rmd</code></div>
diff --git a/index.html b/index.html
index bee871e..e1cec4c 100644
--- a/index.html
+++ b/index.html
@@ -16,7 +16,8 @@
     subscribes to the PEP structure for organizing metadata. It is written using
     a simple YAML + CSV format, it is your one-stop solution to metadata 
     management across data analysis environments. This package reads this 
-    standardized project configuration structure into R.">
+    standardized project configuration structure into R. 
+    Described in Sheffield et al. (2021) &lt;doi:10.1093/gigascience/giab077&gt;.">
 <!-- mathjax --><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js" integrity="sha256-nvJJv9wWKEm88qvoQl9ekL2J+k/RWIsaSScxxlsrv8k=" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js" integrity="sha256-84DKXVJXs0/F8OTMzX4UR909+jtl4G7SPypPavF+GfA=" crossorigin="anonymous"></script><!--[if lt IE 9]>
 <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
 <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
diff --git a/pkgdown.yml b/pkgdown.yml
index 51d71d8..2ed4f03 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -9,5 +9,5 @@ articles:
   feature5_sampleSubtable: feature5_sampleSubtable.html
   feature6_amendments: feature6_amendments.html
   gettingStarted: gettingStarted.html
-last_built: 2023-11-17T02:14Z
+last_built: 2023-11-21T12:56Z
 
diff --git a/reference/Project.html b/reference/Project.html
index 6e0beff..3c5fd8d 100644
--- a/reference/Project.html
+++ b/reference/Project.html
@@ -103,6 +103,14 @@ <h2>Arguments</h2>
 to index the sample table</p></dd>
 
 </dl></div>
+    <div id="value">
+    <h2>Value</h2>
+    
+
+<p>an object of <code>"<a href="Project-class.html">Project</a>"</code></p>
+
+
+    </div>
 
     <div id="ref-examples">
     <h2>Examples</h2>
diff --git a/reference/activateAmendments.html b/reference/activateAmendments.html
index a61b85f..19eb8ee 100644
--- a/reference/activateAmendments.html
+++ b/reference/activateAmendments.html
@@ -93,6 +93,12 @@ <h2>Arguments</h2>
 <dd><p>character with the amendment name</p></dd>
 
 </dl></div>
+    <div id="value">
+    <h2>Value</h2>
+    
+
+<p>an object of class <code>"<a href="Project-class.html">Project</a>"</code> with activated amendments</p>
+    </div>
     <div id="details">
     <h2>Details</h2>
     <p>To check what are the amendments names
diff --git a/reference/dot-printNestedList.html b/reference/dot-printNestedList.html
index 2b80f58..d075eab 100644
--- a/reference/dot-printNestedList.html
+++ b/reference/dot-printNestedList.html
@@ -88,6 +88,12 @@ <h2>Arguments</h2>
 <dd><p>the indentation level</p></dd>
 
 </dl></div>
+    <div id="value">
+    <h2>Value</h2>
+    
+
+<p>No return value, called for side effects</p>
+    </div>
     <div id="details">
     <h2>Details</h2>
     <p>Useful for displaying the config of a PEP</p>
diff --git a/reference/dot-strformat.html b/reference/dot-strformat.html
index 3719457..87be46a 100644
--- a/reference/dot-strformat.html
+++ b/reference/dot-strformat.html
@@ -100,6 +100,12 @@ <h2>Arguments</h2>
 <dd><p>a directory that will be used to make the path absolute</p></dd>
 
 </dl></div>
+    <div id="value">
+    <h2>Value</h2>
+    
+
+<p>Formatted string</p>
+    </div>
 
     <div id="ref-examples">
     <h2>Examples</h2>
diff --git a/reference/fetchSamples.html b/reference/fetchSamples.html
index d7efb9d..e9bc41a 100644
--- a/reference/fetchSamples.html
+++ b/reference/fetchSamples.html
@@ -100,6 +100,12 @@ <h2>Arguments</h2>
 <dd><p>a string (either <code>include</code> or <code>exclude</code>) that specifies whether the function should select the row or exclude it.</p></dd>
 
 </dl></div>
+    <div id="value">
+    <h2>Value</h2>
+    
+
+<p>an object of <code><a href="https://Rdatatable.gitlab.io/data.table/reference/data.table-class.html" class="external-link">data.table-class</a></code> class filtered according to specified requirements</p>
+    </div>
     <div id="details">
     <h2>Details</h2>
     <p>The anonymous function provided in the <code>func</code> argument has to return an integer that indicate the rows that the <code>action</code> should be performed on.