Update hints headings

concepts/printing/about.md

@@ -24,6 +24,7 @@ println!("Values: x = {}, y = {}", x, y);
 ```
 
 In the above example:
+
 - `{}` placeholders are replaced by the values of `x` and `y`.
 - `println!` ensures the output ends with a new line.
 
@@ -47,6 +48,7 @@ println!("{}", result); // Output: tic-tac-toe
 ```
 
 In this example:
+
 - `format!` combines `s1`, `s2`, and `s3` into a single string, separating them with dashes (`-`).
 - The resulting string can be reused or printed later.
 
@@ -81,6 +83,7 @@ println!("{}", p); // Output: Point(3, 4)
 ```
 
 In this example:
+
 - The `fmt` function defines how the `Point` struct is converted to a printable string.
 - The `write!` macro appends the formatted string to the `Formatter`.
 
@@ -102,6 +105,7 @@ println!("{:?}", p); // Output: Point { x: 3, y: 4 }
 ```
 
 In this example:
+
 - `#[derive(Debug)]` automatically generates the implementation for the `Debug` trait.
 - The `{:?}` placeholder tells `println!` to use the `Debug` trait for formatting.
 

concepts/printing/introduction.md

@@ -1,5 +1,6 @@
 # Introduction
 
 Printing in Cairo allows you to display messages, debug information, or formatted values during program execution.
-With versatile macros like println! and format!, you can output basic data types, custom formats, or even complex structures.
-This makes it easy to inspect and communicate program behavior effectively.
+With versatile macros like println!
+and format!, you can output basic data types, custom formats, or even complex structures.
+This makes it easy to inspect and communicate program behavior effectively.

exercises/concept/the-realm-of-echoes/.docs/hints.md

@@ -1,27 +1,27 @@
-### Hints
+# Hints
 
-#### General  
+# General  
 
 - [The Cairo Book: ByteArrays][book-bytearrays]  
 - [Starknet By Example: Strings & ByteArrays][sbe-strings]  
 
-#### 1. Format a magical chant  
+### 1. Format a magical chant  
 
 - Use the `format!` macro to combine multiple `ByteArray` inputs into a single string.  
 - Separate the chants with a delimiter such as `"-"` to match the expected output.  
 - Ensure the output is returned as a `ByteArray`.  
 
-#### 2. Implement a `Display` trait for `EchoStone`  
+### 2. Implement a `Display` trait for `EchoStone`  
 
 - The `Display` trait allows you to define how the `EchoStone` should appear when printed with `{}`.  
 - Use the `write!` macro within the `fmt` function to format the output string.  
 - Include both `power` and `duration` fields in a clear and concise format, e.g., `EchoStone [power: X, duration: Y]`.  
 
-#### 3. Implement a `Debug` trait for `EchoStone`  
+### 3. Implement a `Debug` trait for `EchoStone`  
 
 - The `Debug` trait is used for debugging purposes, allowing for more detailed or structured output when printed with `{:?}`.  
 - Follow a clear debugging format, such as `Debugging EchoStone: { power: X, duration: Y }`.  
 - Use the `write!` macro to create the debug output.  
 
 [book-bytearrays]: https://book.cairo-lang.org/ch02-02-data-types.html#string-types
-[sbe-strings]: https://starknet-by-example.voyager.online/getting-started/basics/bytearrays-strings
+[sbe-strings]: https://starknet-by-example.voyager.online/getting-started/basics/bytearrays-strings