Add solution file for challenge 6.5
user
```ruby
# RELEASE 2: NESTED STRUCTURE GOLF
# Hole 1
# Target element: "FORE"

array = [[1,2], ["inner", ["eagle", "par", ["FORE", "hook"]]]]

# attempts:
# ============================================================
# p array[1][1][2][0]


# ============================================================

# Hole 2
# Target element: "congrats!"

hash = {outer: {inner: {"almost" => {3 => "congrats!"}}}}

# attempts:
# ============================================================

# p hash[:outer][:inner]["almost"][3]

# ============================================================


# Hole 3
# Target element: "finished"

nested_data = {array: ["array", {hash: "finished"}]}

# attempts:
# ============================================================

# p nested_data[:array][1][:hash]

# ============================================================

# RELEASE 3: ITERATE OVER NESTED STRUCTURES

# number_array = [5, [10, 15], [20,25,30], 35]

# number_array.collect! do |element| 
	
# 	if element.kind_of?(Array)
# 		element.collect! {|inner| inner+=5}
# 	else element+=5
# 	end
# end
# p number_array

# Bonus:

startup_names = ["bit", ["find", "fast", ["optimize", "scope"]]]```
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