DEV-3451 docs(removeDuplicate):add subject

subjects/removeduplicate/README.md

@@ -0,0 +1,39 @@
+## removeduplicate
+
+### Instructions
+
+- Write a function that takes in a slice of integers and returns the slice where all duplicate integers have been removed.
+- If the slice is empty, return the slice itself
+
+### Expected function
+
+```go
+func RemoveDuplicate(slice []int) []int {
+
+}
+```
+
+### Usage
+
+Here is a possible program to test your function :
+
+```go
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	fmt.Println(RemoveDuplicate([]int{1,2,3,3,4,5,6,7,8,9,10}))
+    fmt.Println(RemoveDuplicate([]int{1,1,2,2,3}))
+}
+```
+
+And its output :
+
+```console
+$ go run .
+[1 2 3 4 5 6 7 8 9 10]
+[1 2 3]
+```