contrib: Add a page about the debug logging facilities

contributing/Debugging/About Debugging.md

@@ -6,4 +6,5 @@ This section is intended to document how to place debugger breakpoints in the Ta
 
 ## Current Content
 
+- [[Console logging facilities in Tasks]]
 - [[How do I enable hidden debugging and visualisation facilities]]

contributing/Debugging/Console logging facilities in Tasks.md

@@ -0,0 +1,25 @@
+# Console logging facilities in Tasks
+
+The source file [src/lib/logging.ts](https://github.com/obsidian-tasks-group/obsidian-tasks/blob/main/src/lib/logging.ts) provides a logging facility that writes to the developer console.
+
+## Enabling debug logging
+
+The `loggingOptions` section in the file `.obsidian/plugins/obsidian-tasks-plugin/data.json` vault determines the level of detail written out by Tasks.
+
+For example, change all the `info` values to `debug`.
+
+The available levels are:
+
+- `error`: Only show errors.
+- `warn`: Show warnings, and all above.
+- `info`: Show informational messages, and all above.
+- `debug`: Show debug messages and above.
+- `trace`: A `trace` message shows the call-stack to the log message.
+
+See a sample [data.json](https://github.com/obsidian-tasks-group/obsidian-tasks/blob/main/resources/sample_vaults/Tasks-Demo/.obsidian/plugins/obsidian-tasks-plugin/data.json) file.
+
+## Adding logging to new locations
+
+New logging locations need to be added to `loggingOptions` in [src/Config/Settings.ts](https://github.com/obsidian-tasks-group/obsidian-tasks/blob/main/src/Config/Settings.ts), so that developers/users can easily adjust the logging levels.
+
+For now, if you wish to add new logging, please search the source code for uses of `logging.getLogger()`.