Update repo links

README.md

@@ -1,4 +1,4 @@
-**[[Submit tutorial](https://github.com/danistefanovic/build-your-own-x/issues/new)]**
+**[[Submit tutorial](https://github.com/codecrafters-io/build-your-own-x/issues/new)]**
 
 # ![Build your own X](feynman.png)
 
@@ -440,8 +440,8 @@
 * [**TypeScript**: _Tiny Package Manager: Learns how npm or Yarn works_](https://github.com/g-plane/tiny-package-manager)
 
 ## How to contribute 
-* Contributions are very welcome: [Submit tutorial](https://github.com/danistefanovic/build-your-own-x/issues/new)
-* Help me to review [pending submissions](https://github.com/danistefanovic/build-your-own-x/issues) by leaving comments and "reactions"
+* Contributions are very welcome: [Submit tutorial](https://github.com/codecrafters-io/build-your-own-x/issues/new)
+* Help us review [pending submissions](https://github.com/codecrafters-io/build-your-own-x/issues) by leaving comments and "reactions"
 
 ## License