release: appinfo/metadata fixes

* Add <releases> tag

* Update summary to match recommended style

https://freedesktop.org/software/appstream/docs/chap-Metadata.html#tag-summary

* Add copyright information

• value-missing         : <!-- Copyright [year] [name] --> is not present

* Add update contact

• tag-missing           : <update_contact> is not present

* release: Use quotes for filepaths

* release: Mention the need to update appdata file

RELEASE.md

@@ -7,7 +7,8 @@ candidates (ex. `1.0.0rc1`). Release candidates must have a `rcX` suffix.
 
 Release routine:
 
-- Update ChangeLog.md, setup.py, lib/solaar/__init__.py, and docs/_config.yml to the new version
+- Update `ChangeLog.md`, `setup.py`, `lib/solaar/__init__.py`, `docs/_config.yml` to the new release
+- Add the new release to `share/solaar/io.github.pwr_solaar.solaar.metainfo.xml`
 - Create a commit that starts with `release VERSION`
 - Push commit to Solaar repository
 - Invoke `./release.sh`

share/solaar/io.github.pwr_solaar.solaar.metainfo.xml

@@ -1,11 +1,13 @@
+<!-- Copyright 2020-2022 Peter F. Patel-Schneider -->
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop-application">
   <id>io.github.pwr_solaar.solaar</id>
 
   <name>Solaar</name>
-  <summary>Solaar is a Linux manager for many Logitech keyboards, mice, and trackpads.</summary>
+  <summary>Linux manager for Logitech keyboards, mice, and trackpads</summary>
   <url type="homepage">https://github.com/pwr-Solaar/Solaar</url>
   <content_rating type="oars-1.0" />
+  <update_contact>pfpschneider_AT_gmail.com</update_contact>
 
   <metadata_license>CC-BY-4.0</metadata_license>
   <project_license>GPL-2.0-only</project_license>
@@ -41,6 +43,12 @@
     </screenshot>
   </screenshots>
 
+  <releases>
+    <release version="1.1.2" date="2022-03-26"/>
+    <release version="1.1.1" date="2021-12-25"/>
+    <release version="1.1.0" date="2021-12-20"/>
+  </releases>
+
   <provides>
     <binary>solaar</binary>
     <!-- USB Receivers - 27MHz, Unifying, Nano, Bolt -->