Enhance README with new features and setup steps

Author: DEVXIX

README.md

@@ -3,3 +3,9 @@ This is a fork of  https://github.com/na-ji/coral-save-editor/
 - This is updated to the latest update and has feature to remove players, but if a player gets removed, some of his items that he did put down will get removed, so be careful about chests etc
 - Added a feature to re-sort / import / export player data and change steam_id
 Changing Steam ID to the new person that's joining would keep the previous progress of the old player.
+
+
+# Running the Editor
+
+- yarn install the packages
+- npx nx serve editor