Update README.md
restore broken readme
-# TIC-80 API
-
-Here will api docs
-
+TIC-80 issue tracker
+=======
+This is the official issues tracker of <http://tic.computer>. Feel free to open a new issue if you are experiencing a bug or would like to see a new feature. You can either [browse existing issues](https://github.com/nesbox/tic.computer/issues) or [create a new issue](https://github.com/nesbox/tic.computer/issues/new).
+Thanks!
