message: Update README.md
  Fix spelling
diff: ![alt text](docs/contour-screenshots-0.1.0-pre2.png "Screenshot")
  -**IMPORANT: THIS PROJECT IS IN ALPHA STAGE & ACTIVE DEVELOPMENT**
  +**IMPORTANT: THIS PROJECT IS IN ALPHA STAGE & ACTIVE DEVELOPMENT**
  -`contour` is a modern terminal emulator, for everyday use. It is fully seperating emulation from
  -graphical representation for clear seperation of concerns but also for special features to come
  +`contour` is a modern terminal emulator, for everyday use. It is fully separating emulation from
  +graphical representation for clear separation of concerns but also for special features to come
  before version 1.0 is released (headless terminal server with GUI & TUI frontends).
  ## Features
  