Apply suggestions from code review

Co-authored-by: Micha Reiser <micha@rome.tools>

CHANGELOG.md

@@ -11,7 +11,7 @@
   let a = {
     "something": 3
   }
-  let b = "cool ins\'t it";
+  let b = "cool isn\'t it";
 
   // formatted code
   let a = {
@@ -20,8 +20,8 @@
   let b = "cool ins't it";
   ```
   - Better formatting of various statements
-  - Improved the performance of the formatter an average of 20%! Check the [relevant
-PR](https://github.com/rome/tools/pull/2634) if you're interested in what the team did.
+  - Improved the performance of the formatter an average of 20%! Check the relevant
+PRs [1](https://github.com/rome/tools/pull/2456), [2](https://github.com/rome/tools/pull/2638), [3](https://github.com/rome/tools/pull/2612), [4](https://github.com/rome/tools/pull/2462), [5](https://github.com/rome/tools/pull/2634) if you're interested in what the team did.
 
 To reach better compatibility with Prettier, the team had to revise the foundation of our printer,
 which caused some regressions around how comments are printed. These are known issues that we