Script for song management

[ci skip]

readme.md

@@ -33,3 +33,25 @@ zola build
 ```
 
 This is done by default during the deploy pipeline.
+
+## Song management
+
+The `manage` shell script lets you do basic song management and saves you some
+manual labour. Simply run the script itself or invoke `help` to get a list of
+all available commands.
+
+For now the script only supports creating new songs, which it does in an
+interactive way by asking for important data and filling all needed templates.
+
+```
+./manage help
+Usage: ./manage <command> [options]
+
+Commands:
+  help        Show this help message and exit
+  new <name>  Create a new song with the specified name
+
+Examples:
+  ./manage help
+  ./manage new [song-name]
+```