Add Readme file

README.md

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+# Simon Says
+
+## Device
+This is programmed for a M5Stack Atom Matrix.
+
+## Game play
+
+When starting, the device will start in the first phase.
+
+### Phases
+1. Level indication
+2. Show Color sequence
+3. Input of sequence
+
+
+### Level indication
+
+### Show of Color sequence
+
+### Input of sequence