add condition

subjects/addfront/README.md

@@ -0,0 +1,39 @@
+## addfront
+
+### Instructions
+
+Write a function that takes a string and a slice of strings, this function will return a new slice of string with the given string prepended
+- If the given string is empty you only need to return the given slice
+
+### Expected function 
+
+```go
+func AddFront(s string, slice []string) []string {
+    // your code here
+}
+```
+
+### Usage
+
+Here is a possible program to test your function:
+
+```go
+package main
+
+import "fmt"
+
+func main() {
+    fmt.Println(AddFront("Hello", []string{"world"}))
+    fmt.Println(AddFront("Hello", []string{"world", "!"}))
+    fmt.Println(AddFront("Hello", []string{}))
+}
+```
+
+and the output should be:
+
+```console
+$ go run .
+[Hello world]
+[Hello world !]
+[Hello]
+```