fix: update README for clarity and move test files for better organisation

Author: apetta

README.md

@@ -1,6 +1,6 @@
 # node-cache-plus
 
-`node-cache-plus` is a wrapper around the popular library [`node-cache`](https://github.com/node-cache/node-cache/tree/master) with additional features such tag-based invalidation, factory functions, and other helpers for in-memory caching in Node.js applications.
+`node-cache-plus` is a wrapper around the popular library [`node-cache`](https://github.com/node-cache/node-cache/tree/master) with additional features such as tag-based invalidation, factory functions, and other helpers for in-memory caching in Node.js applications.
 
 ## Installation
 

src/Cache.test.ts src/tests/Cache.test.tssrc/Cache.test.ts renamed to src/tests/Cache.test.ts

@@ -1,5 +1,5 @@
 import { beforeEach, describe, expect, it } from "vitest";
-import { Cache } from "./Cache";
+import { Cache } from "../Cache";
 
 describe("Cache", () => {
 	let cache: Cache;

src/helpers.test.ts src/tests/helpers.test.tssrc/helpers.test.ts renamed to src/tests/helpers.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { cachedCall, withCache } from "./helpers";
+import { cachedCall, withCache } from "../helpers";
 
 // A mock function that simulates an expensive async operation
 async function expensiveFunction(param: string): Promise<string> {