Add Productivity Tools subsection; add MAT2 (#1270)

* Add MAT2

* Update source_code.md

* Update _includes/sections/productivity-tools.html

Co-Authored-By: Mikaela Suomalainen <mikaela+git@mikaela.info>

_includes/sections/productivity-tools.html

@@ -31,6 +31,27 @@
 
 </div>
 
+<h1 id="metadata-removal-tools" class="anchor">
+  <a href="#metadata-removal-tools"
+    ><i class="fas fa-link anchor-icon"></i>
+  </a> Metadata Removal Tools
+</h1>
+
+<div class="row mb-2">
+{%
+  include cardv2.html
+  title="MAT2"
+  image="/assets/img/tools/MAT2.png"
+  description="<strong>MAT2</strong> is free software, which allows the removal of metadata of image, audio, torrent, and document file types. It provides both a command line tool and a graphical user interface via an extension for Nautilus, the default file manager of GNOME."
+  website="https://0xacab.org/jvoisin/mat2"
+  forum="https://forum.privacytools.io/t/discussion-mat/1559"
+  gitlab="https://0xacab.org/jvoisin/mat2"
+  linux=""
+  mac=""
+  windows=""
+%}
+</div>
+
 <h3>Worth Mentioning</h3>
 
 <ul>

source_code.md

@@ -382,6 +382,8 @@ Backend: Closed Source
 
    LibreOffice: https://gerrit.libreoffice.org/
 
+MAT2: https://0xacab.org/jvoisin/mat2
+
 ## PC Operating Systems
  QubesOS: https://github.com/QubesOS