Update generalResources.md (#986)

Author: vaishaliisingh

generalResources.md

@@ -54,4 +54,6 @@
 
 * [**frontend Mentor**](https://www.frontendmentor.io/challenges): Solve real-world HTML, CSS and JavaScript challenges whilst working to professional designs.
 
-* [**PerfectBugReport.io**](https://www.perfectbugreport.io/): A simple checklist of the essential items to include in bug reports.
+* [**PerfectBugReport.io**](https://www.perfectbugreport.io/): A simple checklist of the essential items to include in bug reports.
+
+* [**useful Github repository**](https://github.com/codecrafters-io/build-your-own-x): This repository is a compilation of well-written, step-by-step guides for re-creating our favorite technologies from scratch.