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Update README.md

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@ -101,6 +101,9 @@ Now let us do the same but without `PRINT`:
TEXT: HOME
POKE 1024,1 : POKE 1025, 65: POKE 1026, 129: POKE 1027, 193
```
![POKE multiples A](img/poke_a.png)
Well ! It looks like we can store values of 128 to 159 on the screen memory even though we cannot PRINT those control-characters.
## Why print control-characters ?