add: moodly challenges docs

14-arrays/06-challenge-moodly/challenge/main.go

@@ -0,0 +1,41 @@
+package main
+
+// ---------------------------------------------------------
+// EXERCISE: Moodly
+//
+//   1. Get username from command-line
+//
+//   2. Display the usage if the username is missing
+//
+//   3. Create an array
+//     1. Add three positive mood messages
+//     2. Add three negative mood messages
+//
+//   4. Randomly select and print one of the mood messages
+//
+// EXPECTED OUTPUT
+//
+//   go run main.go
+//     [your name]
+//
+//   go run main.go Socrates
+//     Socrates feels good 👍
+//
+//   go run main.go Socrates
+//     Socrates feels bad 👎
+//
+//   go run main.go Socrates
+//     Socrates feels sad 😞
+//
+//   go run main.go Socrates
+//     Socrates feels happy 😀
+//
+//   go run main.go Socrates
+//     Socrates feels awesome 😎
+//
+//   go run main.go Socrates
+//     Socrates feels terrible 😩
+// ---------------------------------------------------------
+
+func main() {
+}