docs: tweak readme info

Author: ghiscoding

README.md

@@ -31,7 +31,7 @@ The modernization steps:
 - drop `Lodash` dependency (we now use native JS code)
 - replace `JSZip` dependency with [`fflate`](https://github.com/101arrowz/fflate) which has an ESM build offers better performance.
 
-This modernization should also provide a huge decrease in the final build size and possibly offer better performance 🚀
+This modernization is providing a huge decrease in the final build size and is offering better performance 🚀
 
 ## Installation
 
@@ -43,7 +43,7 @@ The project offers 3 different bundle types, choose the best for your use case
 1. ESM: to `import from` (prefered)
 2. CJS: CommonJS to support old Node `require()`... might be removed in the future
 3. IIFE: standalone script with `ExcelBuilder` available on the `window` object
-  
+
 ```ts
 // ESM - npm install
 import { createWorksheet } from 'excel-builder-vanilla';