Merge pull request sopel-irc#2638 from sopel-irc/plugins-show-version

cli.plugins: include version number in `sopel-plugins show`

sopel/cli/plugins.py

@@ -283,6 +283,7 @@ def handle_show(options):
         })
 
     print('Plugin:', description['name'])
+    print('Version:', description['version'] or 'unknown')
     print('Status:', description['status'])
     print('Type:', description['type'])
     print('Source:', description['source'])