message: README.md: Adding \`contour info vt\` line to usage.
diff: @@ -55,6 +55,7 @@ for everyday use. It is aiming for power users with a modern feature mindset.
  [early-exit-threshold UINT] [working-directory DIRECTORY] [class WM_CLASS]
  [platform PLATFORM[:OPTIONS]] [session SESSION_ID] [PROGRAM ARGS...]
  contour font-locator [config FILE] [profile NAME] [debug TAGS]
  + contour info vt
  contour help
  contour version
  contour license
  