feat(piscine-go): add README.md for new go exercise dealapackofcards

subjects/dealapackofcards/README.md

@@ -0,0 +1,39 @@
+## dealapackofcards
+
+### Instructions
+
+Deal a pack of `12` cards evenly between 4 players, `Player 1`, `Player 2`, `Player 3` and `Player 4`.
+
+Write a function `DealAPackOfCards()` that takes an argument `deck` as an `int` and prints the desired output.
+
+- Each player must be printed in a different line.
+
+### Expected function
+
+```go
+func DealAPackOfCards (deck []int) {
+
+}
+```
+
+### Usage
+
+Here is a possible program to test your function:
+
+```go
+func main() {
+	deck := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
+  	DealAPackOfCards(deck)
+}
+```
+
+And its output:
+
+```go
+$ go run . | cat -e
+Player 1: 1, 2, 3$
+Player 2: 4, 5, 6$
+Player 3: 7, 8, 9$
+Player 4: 10, 11, 12$
+$
+```