Adding to readme

Henry Fredrick Schreiner
1 parent 33de7af0
Showing 1 changed file with 2 additions and 1 deletions
README.md
@@ -149,7 +149,8 @@ On the command line, options can be given as:
 * `--file filename` (space)
 * `--file=filename` (equals)
  
-Extra positional arguments will cause the program to exit, so at least one positional option with a vector is recommended if you want to allow extraneous arguments
+Extra positional arguments will cause the program to exit, so at least one positional option with a vector is recommended if you want to allow extraneous arguments.
+If you set `.allow_extras()` on the main `App`, the parse function will return the left over arguments instead of throwing an error.
 If `--` is present in the command line,
 everything after that is positional only.