[EXTERNAL] fixed a wrong data type given in the instructions.

[madaghaxx]

The instruction were requesting a HashMap with a tuple of strings as key and a value of a callback function but the expected function used a HashMap with string as key and callback as value.
The given instructions where misleading the users.

The instructions:

• A second structure named FlagsHandler will be given which just has one element: flags: HashMap<(String, String), Callback>. You'll also need to implement the following associated functions:

The given expected function:

pub struct FlagsHandler {
    pub flags: HashMap<String, Callback>,
}

So the fixed version of the instructions is :

• A second structure named FlagsHandler will be given which just has one element: flags: HashMap<String, Callback>. You'll also need to implement the following associated functions:

[madaghaxx]

Fixed the raid subject with 2 main keys:

• Added the instruction clarifying that shapes must be in different colors because nothing in the instructions indicates it and it is mandatory in the audit page.
• Fixed the main function to give an image close to the one in the instructions.

[pedrodesu]

Hello @madaghaxx! Thank you for the PR. Everything looks good, and so we will merge this. The action failed but it's a false positive. We will report this too.

Let me know if you have anything else to add. Thank you!