Minor improvements to the code.
Add README.md to develop branch.
Update the TODO list
Make sure Alfred doesn't change the order of the tags.
Add a command to show the current settings of the workflow.
Add documentation for showing the settings.
BugFix: Using a non-existing tag would break the workflow's logic
Merge branch 'develop'

* develop: (7 commits)
  BugFix: Using a non-existing tag would break the workflow's logic
  Add documentation for showing the settings.
  Add a command to show the current settings of the workflow.
  Make sure Alfred doesn't change the order of the tags.
  Update the TODO list
  Add README.md to develop branch.
  ...