Add .gitignore

SHA: e0522ae
Reason: push, by GertjanFi

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

index.html

@@ -1490,7 +1490,7 @@
 </style>
   <meta content="Bikeshed version 82ce88815, updated Thu Sep 7 16:33:55 2023 -0700" name="generator">
   <link href="https://netwerk-digitaal-erfgoed.github.io/requirements-collection-management-systems/" rel="canonical">
-  <meta content="5d7873a40bcbcdeb154c151349b32f301977f4eb" name="document-revision">
+  <meta content="e0522aed9f940d61b5e3ee563a7dff19747c2b88" name="document-revision">
 <style>/* Boilerplate: style-autolinks */
 .css.css, .property.property, .descriptor.descriptor {
     color: var(--a-normal-text);
@@ -1895,7 +1895,7 @@
   <div class="head">
    <p data-fill-with="logo"></p>
    <h1 class="p-name no-ref" id="title">Requirements for Collection Management Systems</h1>
-   <h2 class="no-num no-toc no-ref heading settled" id="profile-and-date"><span class="content">Living Standard, <time class="dt-updated" datetime="2023-11-14">14 November 2023</time></span></h2>
+   <h2 class="no-num no-toc no-ref heading settled" id="profile-and-date"><span class="content">Living Standard, <time class="dt-updated" datetime="2023-11-22">22 November 2023</time></span></h2>
    <div data-fill-with="spec-metadata">
     <dl>
      <dt>This version:
@@ -1911,7 +1911,7 @@ <h2 class="no-num no-toc no-ref heading settled" id="profile-and-date"><span cla
    <div data-fill-with="warning"></div>
    <p class="copyright" data-fill-with="copyright"><a href="http://creativecommons.org/publicdomain/zero/1.0/" rel="license"><img alt="CC0" height="15" src="https://licensebuttons.net/p/zero/1.0/80x15.png" width="80"></a> To the extent possible under law, the editors have waived all copyright
 and related or neighboring rights to this work.
-In addition, as of 14 November 2023,
+In addition, as of 22 November 2023,
 the editors have made this specification available under the <a href="http://www.openwebfoundation.org/legal/the-owf-1-0-agreements/owfa-1-0" rel="license">Open Web Foundation Agreement Version 1.0</a>,
 which is available at http://www.openwebfoundation.org/legal/the-owf-1-0-agreements/owfa-1-0.
 Parts of this work may be from another specification document.  If so, those parts are instead covered by the license of that specification document. </p>