update readme

Author: tpabarbosa

README.md

@@ -1,3 +1,40 @@
 # React Game Concept with HTML Canvas
 
-This is a simple game example made with React
+🔹 This is a simple game concept made in [React](https://github.com/facebook/react) with [Typescript](https://github.com/Microsoft/TypeScript). I also installed [styled-components](https://github.com/styled-components/styled-components) library to help with css. 🔹 
+
+![game-screenshot](images/game-screenshot.png?raw=true)
+
+🔸 Map and Entities rendering were made in [HTML Canvas elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/canvas) with [CanvasRenderingContext2D](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D). 🔸 
+
+❗ This game was made **to learn React basics** so I dind't use redux to state management but I made my own state control (maybe it's not a good one - but, well, if it works it's good!! 😏). I tried to implement some kind of a *finite state machine* logic without any libraries.  
+![code-screenshot](images/levelTransitions-in-LevelState-file.png?raw=true)
+
+
+##How to play
+- **Browers** 
+Just hit **Enter** to start, pause, unpause, end level and restart, **wasd** or **arrows** to move. 
+
+- **Mobile** *
+Touch **buttons** at the bottom to do everything.
+
+Oh, you are the little girl in the middle, and must collect every coin to get to next level! Monsters will chase you, but from time to time they will take a little rest. Game ends when monsters get you 3 times.
+
+> ### Try it:
+> 
+> https://react-game-concept-with-canvas.vercel.app/
+>
+> 🛑 May be laggy in some old or not updated smartphones
+
+## Todo
+
+It's not an original idea, nor a really great game, but I  would like to implement some more details:
+
+- A name for the game;
+- More monsters, more items, more heroes;
+- A highscore with data saved in localStorage;
+- A screen before game starts where players could choose an hero, give it a name, set volume, get high scores;
+- Give some kind of power-up to hero, so he/she could fight against monsters or have some defense against them;
+- Improve maps and design more levels;
+
+🤔 That's all I can think of by now...
+