file_directory: added alias to find all broken symlinks

.oh-my-shell/shellrc/plugins/file_directory/aliases.sh

@@ -9,3 +9,7 @@ alias touch='f_file_directory_create_missing_dirs_file 1 '
 # Create file and possibly missing parent, then edit
 # usage: touch /path/to/missing/dir/file.txt
 alias edit='f_file_directory_create_missing_dirs_file 0 '
+
+# Find all broken symbolic links
+# usage: find_broken_symbolic_link /path/to/some/folder
+alias find_broken_symbolic_link='find -L -xtype l'