docs(Rest): refine README with minor content and emoji updates

Tweak the Architecture Principles table entry for Performance to ensure consistent formatting, and enhance the ecosystem section header with the park landmark emoji (🏞️) alongside the beach umbrella (⛱️) for better visual representation of the Land ecosystem.

These are small polish items following the recent comprehensive README overhaul.

Author: NikolaRHristov

README.md

@@ -110,7 +110,7 @@ reasons that directly affect the VSCode build:
 
 | Principle          | Description                                                              | Key Components Involved          |
 | :----------------- | :----------------------------------------------------------------------- | :------------------------------- |
-| **Performance**    | Rust + OXC delivers 2-3x faster compilation than esbuild.                | OXC Parser, Transformer, Codegen |
+| **Performance**    | Rust + OXC delivers 2-3x faster compilation than esbuild.                | OXC Parser, Transformer, Codegen |
 | **Compatibility**  | OXC is used by VSCode internally, ensuring 1:1 output compatibility.     | OXC 0.48, VSCode build process   |
 | **Memory Safety**  | No garbage collection, deterministic performance through Rust ownership. | Rust lifetime management         |
 | **Modern Tooling** | Built on the latest OXC infrastructure for TypeScript compilation.       | OXC 0.48+                        |
@@ -140,7 +140,7 @@ and VSCode compatibility transformations.
 
 ---
 
-## `Rest` in the Land Ecosystem ⛱️ + 🏞️
+## `Rest` in the Land Ecosystem ⛱️ + 🏞️
 
 | Component         | Role & Key Responsibilities                                  |
 | :---------------- | :----------------------------------------------------------- |