name changes for chapters - each exercise now owns a chapter

Author: ishtms

Readme.md

@@ -255,7 +255,7 @@ The repo for our backend framework- [Velocy](https://github.com/ishtms/velocy)
 -   [Improving the `Router` API](/chapters/ch06.3-improving-the-router-api.md)
 -   [The need for a `trie`](/chapters/ch06.4-the-need-for-a-trie.md)
     -   [What is a `Trie` anyway?](/chapters/ch06.4-the-need-for-a-trie.md#what-is-a-trie-anyway)
--   [Exercise 1 - Implementing a `Trie`](/chapters/ch07-ex-implementing-a-trie.md#exercise---implementing-a-trie)
+-   [Exercise 1 - Implementing a `Trie`](/chapters/ch07-ex-implementing-a-trie.md#exercise-1---implementing-a-trie)
     -   [Root Node](/chapters/ch07-ex-implementing-a-trie.md#root-node)
     -   [End of the word](/chapters/ch07-ex-implementing-a-trie.md#end-of-the-word)
     -   [Challenge 1: Basic Trie with `insert` Method](/chapters/ch07-ex-implementing-a-trie.md#challenge-1-basic-trie-with-insert-method)
@@ -267,7 +267,7 @@ The repo for our backend framework- [Velocy](https://github.com/ishtms/velocy)
         -   [More details](/chapters/ch07-ex-implementing-a-trie.md#more-details-1)
         -   [Hints](/chapters/ch07-ex-implementing-a-trie.md#hints)
         -   [Solution](#solution-1)
--   [Exercise 2 - Implementing our Trie based `Router`](/chapters/ch08-ex-implementing-router.md)
+-   [Exercise 2 - Implementing our Trie based `Router`](/chapters/ch08-ex-implementing-router.md#exercise-2---implementing-our-trie-based-router)
     -   [Challenge 1: Implementing the `addRoute` method](/chapters/ch08-ex-implementing-router.md#challenge-1-implementing-the-addroute-method)
         -   [Requirements](/chapters/ch08-ex-implementing-router.md#requirements)
         -   [More details](/chapters/ch08-ex-implementing-router.md#more-details)

chapters/ch07-ex-implementing-a-trie.md

@@ -1,6 +1,6 @@
 [![Read Prev](/assets/imgs/prev.png)](/chapters/ch06.4-the-need-for-a-trie.md)
 
-# Exercises - Implementing a `Trie`
+# Exercise 1 - Implementing a `Trie`
 
 > This exercise will motivate you to work on implementing your solution independently. Once you have completed the exercise, you can move on to the next challenge or read the solution to find a different approach.
 >

chapters/ch08-ex-implementing-router.md

@@ -1,6 +1,6 @@
 [![Read Prev](/assets/imgs/prev.png)](/chapters/ch07-ex-implementing-a-trie.md)
 
-# Exercise - Implementing our Trie based `Router`
+# Exercise 2 - Implementing our Trie based `Router`
 
 > This challenge is designed to push your boundaries and is considered to be more advanced than usual. It's completely okay if you don't crack it on your first attempt. The key is to persist, revisit your logic, and don't hesitate to iterate on your solutions.