webpage.py: note to ignore error in versions checkout

This build is based on
0399e5f.

This commit was created by the following Travis CI build and job:
https://travis-ci.com/manubot/rootstock/builds/108895621
https://travis-ci.com/manubot/rootstock/jobs/194120819

[ci skip]

The full commit message that triggered this build is copied below:

webpage.py: note to ignore error in versions checkout

Merges #211
Closes #183

README.md

@@ -1,7 +1,7 @@
 # Output directory containing the formatted manuscript
 
 The [`gh-pages`](https://github.com/manubot/rootstock/tree/gh-pages) branch hosts the contents of this directory at https://manubot.github.io/rootstock/.
-The permalink for this webpage version is https://manubot.github.io/rootstock/v/091ca8d85c8ef2d7af16fcc8d2ed3ebcbc187f13/.
+The permalink for this webpage version is https://manubot.github.io/rootstock/v/0399e5f20d511a18208b7d902f2530ac30b646f2/.
 To redirect to the permalink for the latest manuscript version at anytime, use the link https://manubot.github.io/rootstock/v/freeze/.
 
 ## Files
@@ -36,4 +36,4 @@ Verifying timestamps with the `ots verify` command requires running a local bitc
 ## Source
 
 The manuscripts in this directory were built from
-[`091ca8d85c8ef2d7af16fcc8d2ed3ebcbc187f13`](https://github.com/manubot/rootstock/commit/091ca8d85c8ef2d7af16fcc8d2ed3ebcbc187f13).
+[`0399e5f20d511a18208b7d902f2530ac30b646f2`](https://github.com/manubot/rootstock/commit/0399e5f20d511a18208b7d902f2530ac30b646f2).

index.html

@@ -6,7 +6,7 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes" />
   <meta name="author" content="John Doe" />
   <meta name="author" content="Jane Roe" />
-  <meta name="dcterms.date" content="2019-04-08" />
+  <meta name="dcterms.date" content="2019-04-18" />
   <meta name="keywords" content="markdown, publishing, manubot" />
   <title>Manuscript Title</title>
   <style>
@@ -86,7 +86,7 @@
 <header id="title-block-header">
 <h1 class="title">Manuscript Title</h1>
 </header>
-<p><small><em> This manuscript (<a href="https://manubot.github.io/rootstock/v/091ca8d85c8ef2d7af16fcc8d2ed3ebcbc187f13/">permalink</a>) was automatically generated from <a href="https://github.com/manubot/rootstock/tree/091ca8d85c8ef2d7af16fcc8d2ed3ebcbc187f13">manubot/rootstock@091ca8d</a> on April 8, 2019. </em></small></p>
+<p><small><em> This manuscript (<a href="https://manubot.github.io/rootstock/v/0399e5f20d511a18208b7d902f2530ac30b646f2/">permalink</a>) was automatically generated from <a href="https://github.com/manubot/rootstock/tree/0399e5f20d511a18208b7d902f2530ac30b646f2">manubot/rootstock@0399e5f</a> on April 18, 2019. </em></small></p>
 <h2 id="authors">Authors</h2>
 <ul>
 <li><p><strong>John Doe</strong><br> <img src="images/orcid.svg" alt="ORCID icon" class="inline_icon" /> <a href="https://orcid.org/XXXX-XXXX-XXXX-XXXX">XXXX-XXXX-XXXX-XXXX</a> · <img src="images/github.svg" alt="GitHub icon" class="inline_icon" /> <a href="https://github.com/johndoe">johndoe</a> · <img src="images/twitter.svg" alt="Twitter icon" class="inline_icon" /> <a href="https://twitter.com/johndoe">johndoe</a><br> <small> Department of Something, University of Whatever · Funded by Grant XXXXXXXX </small></p></li>
@@ -336,8 +336,8 @@ <h2 id="references" class="page_break_before">References</h2>
 </div>
 <div id="ref-6acIRW4q">
 <p>8. <strong>Open collaborative writing with Manubot</strong><br />
-Daniel S. Himmelstein, David R. Slochower, Venkat S. Malladi, Dongbo Hu, Vincent Rubinetti, Casey S. Greene, Anthony Gitter<br />
-(2019-04-06) <a href="https://greenelab.github.io/meta-review/">https://greenelab.github.io/meta-review/</a></p>
+Daniel S. Himmelstein, Vincent Rubinetti, David R. Slochower, Dongbo Hu, Venkat S. Malladi, Casey S. Greene, Anthony Gitter<br />
+(2019-04-17) <a href="https://greenelab.github.io/meta-review/">https://greenelab.github.io/meta-review/</a></p>
 </div>
 </div>
 <!-- default theme -->