Update TODO.md

TODO.md

@@ -5,6 +5,7 @@ Here are tasks considered for future versions. Once done, they are moved to the
 ## Next
 
 - Fix issue with attempting to modify a frozen hash when passed as value for `pd` command (check if frozen)
+- Enable easier setting of the `pd` log level for a Rails application than requiring a `PutsDebuggerer.printer` lambda by offering the option `PutsDebuggerer.log_level`.
 - When using last arg as hash for options, leave out options that are not puts_debuggerer-specific for printing out
 - Support displaying the date/time of the pd printout via an option (local and global)
 - Display class#method for instance methods and class::method for class methods