Update version info and changes in appdata file.

data/io.github.wxmaxima_developers.wxMaxima.appdata.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Copyright 2021 wxMaxima Team -->
+<!-- Copyright 2022 wxMaxima Team -->
 <component type="desktop">
   <id>io.github.wxmaxima_developers.wxMaxima</id>
   <metadata_license>CC0-1.0</metadata_license>
@@ -57,7 +57,40 @@
     <content_attribute id="social-info">mild</content_attribute>
   </content_rating>
   <releases>
-   <release version="21.11.0" date="2021-11-21T18:00:00Z">
+   <release version="22.03.0" date="2022-03-19T22:00:00Z">
+     <description>
+	<p>
+       Many bug fixes and improvements.
+    <ul>
+<li>Add an compile option "WXM_INCLUDE_FONTS", which allows to
+specify, if additional fonts should be included.
+Current default: YES; use -DWXM_INCLUDE_FONTS=NO when calling
+CMake to disable that.
+Including fonts caused some issues on MacOS. (#1580)</li>
+<li>Rename command line option --logtostdout to --logtostderr.
+Because the option does print the log messages to STDERR, not STDOUT.</li>
+<li>A better heuristics for finding out what to style as 1D maths</li>
+<li>An updated french translation from Frédéric Chapoton</li>
+<li>Consistent image resolutions</li>
+<li>No more crashes on exporting multiple animations at once (#1616)</li>
+<li>Drag-and-Drop in the table of contents</li>
+<li>Table of contents: Convert sections to subsections and similar (#1629)</li>
+<li>Parenthesis and quote matching now uses the maxima parser.
+This means it now both knows the details of the maxima language
+and is much faster than before.</li>
+<li>A way of limiting the toc depth shown in the table of contents</li>
+<li>Now the problems after a kill(all) should be finally resolved</li>
+<li>Better support for the debugger (#1625)</li>
+<li>Machine-Float NaNs no more causes XML errors</li>
+<li>Labels with hexadecimal numbers no more cause crashes (#1633)</li>
+<li>wxMaxima no more skips chars in subscripted variables (#1632)</li>
+<li>Merging cells per keyboard shortcut works again (#1626)</li>
+<li>Symbols buttons whose symbols the GUI font lacks are now hidden</li>
+    </ul>
+	</p>
+      </description>
+  </release>
+  <release version="21.11.0" date="2021-11-21T18:00:00Z">
      <description>
 	<p>
        Many bug fixes and improvements.