docs(devs-infra): update README and CHANGELOG to be clearer

Author: ahnpnl

CHANGELOG.md

@@ -19,10 +19,14 @@
 
 * **NodeJs** range version support now is `^12.20.0 || ^14.15.0 || >=16.10.0`
 * Due to the introduction of **ESM package format** for Angular packages, several things are added to the **default preset** to handle `.mjs` files from **Angular ESM packages**:
+
   + `ng-jest-resolver` is introduced as a custom Jest resolver to resolve `.mjs` files. This custom Jest resolver will affect
-  how Jest loads a module. One might have issues with `paths` of TypeScript. Users are encouraged to extend the default
-  [resolver](https://github.com/thymikee/jest-preset-angular/blob/main/src/resolvers/ng-jest-resolver.ts) from the preset to suit their own needs.
+  
+  how Jest loads modules. If this resolver doesn't fit the needs, users are encouraged to extend [this
+  resolver](https://github.com/thymikee/jest-preset-angular/blob/main/src/resolvers/ng-jest-resolver.ts) from the preset to suit own needs.
+
   + `transformIgnorePatterns` is added to inform Jest to transform `.mjs` files.
+  
   + `transform` is updated to include `.mjs` extension to transform to `CommonJS` codes.
 
 If one has custom Jest config, please make sure to adjust Jest config for CJS mode as following:

README.md

@@ -8,7 +8,9 @@
     <a href="https://github.com/thymikee/jest-preset-angular/blob/main/LICENSE"><img src="https://img.shields.io/npm/l/jest-preset-angular.svg?style=flat-square" alt="GitHub license" /></a>
 </p>
 
-This is a part of the article: [Testing Angular faster with Jest](https://www.xfive.co/blog/testing-angular-faster-jest/).
+> Our online documentation is available at https://thymikee.github.io/jest-preset-angular/
+
+> This is a part of the article: [Testing Angular faster with Jest](https://www.xfive.co/blog/testing-angular-faster-jest/).
 
 ## Getting Started