Add README.md

README.md

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-# game-of-life
-Conway game of life
+# Conway`s game-of-life, written in Go .
+
+https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life
+
+## How to install
+
+You must go to [the releases page](https://github.com/eloylp/game-of-life/releases)
+and download the latest binary for your architecture.
+
+You can also try this one liner install:
+```bash
+sudo curl -L "https://github.com/eloylp/game-of-life/releases/download/v1.0.0/gol_1.0.0_Linux_x86_64" \
+-o /usr/local/bin/gol \
+&& sudo chmod +x /usr/local/bin/gol
+```
+## How to run 
+
+If you want a description about the arguments, just invoke help:
+```bash
+gol -h
+```
+
+Here is a full example of how to use this CLI:
+```bash
+gol -x 20 -y 20 -g 100 -i 2
+```
+
+This will bring more life to your computer !
+
+How to run tests
+```bash
+go test
+```
+
+How to run benchmark tests
+```bash
+go test -bench=.
+```