subject(is-the-square-a-child): add readmed

subjects/isthesquareachild/README.md

@@ -0,0 +1,46 @@
+## is-the-square-a-child
+
+### Instructions
+
+Write a function `IsTheSquareAChild` that takes a number and returns `true` if the number is a square and `false` otherwise.
+- The function should return `false` if the number is negative.
+- Check only if the first parameter is the square of the second one.
+
+### Expected Function
+```go
+func IsTheSquareAChild(number int, square int) bool {
+    // your code here
+}
+```
+
+### Usage
+
+``` go
+package main
+
+import "fmt"
+
+func main(){
+    fmt.Println(IsTheSquareAChild(4, 16))
+    fmt.Println(IsTheSquareAChild(5, 23))
+    fmt.Println(IsTheSquareAChild(5, 25))
+    fmt.Println(IsTheSquareAChild(2, 27))
+    fmt.Println(IsTheSquareAChild(6, 36))
+    fmt.Println(IsTheSquareAChild(-10, 100))
+    fmt.Println(IsTheSquareAChild(100,10))
+}
+```
+
+and its output:
+
+```console
+$ go run . 
+true
+false
+true
+false
+true
+false
+false
+```
+