docs: apply minor fixes

README.md

@@ -2,24 +2,24 @@
 
 Structured Objects is a lightweight and powerful library for manipulating objects in JavaScript and TypeScript across different types of data structures.
 
-## Installation
+## 📦 Installation
 
 npm:
 
 ```bash
 npm i @kasnix/structured-objects
 ```
 
-Yarn:
+pnpm:
 
 ```bash
-yarn add @kasnix/structured-objects
+pnpm add @kasnix/structured-objects
 ```
 
-pnpm:
+Yarn:
 
 ```bash
-pnpm add @kasnix/structured-objects
+yarn add @kasnix/structured-objects
 ```
 
 Deno:
@@ -34,7 +34,7 @@ Bun:
 bun add @kasnix/structured-objects
 ```
 
-## Usage
+## ⚙️ Usage
 
 ```typescript
 import { SimilarityGraph } from "@kasnix/structured-objects/similarity-graph";
@@ -49,7 +49,7 @@ const dataList: Array<DataItem> = [/* ... */];
 const dataGraph = new SimilarityGraph<DataItem>(dataList, (dataItem) => dataItem.id);
 ```
 
-## Documentation
+## 📖 Documentation
 
-- [SimilarityGraph](./docs/similarity-graph.doc.md)
+- [SimilarityGraph](./docs/similarity-graph.md)
 - [Migration Guide: v1 to v2](./docs/migration-guide-v1-to-v2.md)