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## Contribute\r
\r
-There are many ways to [contribute](https://github.com/microsoft/TypeScript/blob/master/CONTRIBUTING.md) to TypeScript.\r
+There are many ways to [contribute](https://github.com/microsoft/TypeScript/blob/main/CONTRIBUTING.md) to TypeScript.\r
* [Submit bugs](https://github.com/microsoft/TypeScript/issues) and help us verify fixes as they are checked in.\r
* Review the [source code changes](https://github.com/microsoft/TypeScript/pulls).\r
* Engage with other TypeScript users and developers on [StackOverflow](https://stackoverflow.com/questions/tagged/typescript).\r
* Help each other in the [TypeScript Community Discord](https://discord.gg/typescript).\r
* Join the [#typescript](https://twitter.com/search?q=%23TypeScript) discussion on Twitter.\r
-* [Contribute bug fixes](https://github.com/microsoft/TypeScript/blob/master/CONTRIBUTING.md).\r
-* Read the archived language specification ([docx](https://github.com/microsoft/TypeScript/blob/master/doc/TypeScript%20Language%20Specification%20-%20ARCHIVED.docx?raw=true),\r
- [pdf](https://github.com/microsoft/TypeScript/blob/master/doc/TypeScript%20Language%20Specification%20-%20ARCHIVED.pdf?raw=true), [md](https://github.com/microsoft/TypeScript/blob/master/doc/spec-ARCHIVED.md)).\r
+* [Contribute bug fixes](https://github.com/microsoft/TypeScript/blob/main/CONTRIBUTING.md).\r
+* Read the archived language specification ([docx](https://github.com/microsoft/TypeScript/blob/main/doc/TypeScript%20Language%20Specification%20-%20ARCHIVED.docx?raw=true),\r
+ [pdf](https://github.com/microsoft/TypeScript/blob/main/doc/TypeScript%20Language%20Specification%20-%20ARCHIVED.pdf?raw=true), [md](https://github.com/microsoft/TypeScript/blob/main/doc/spec-ARCHIVED.md)).\r
\r
This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see\r
the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [opencode@microsoft.com](mailto:opencode@microsoft.com)\r
## Documentation\r
\r
* [TypeScript in 5 minutes](https://www.typescriptlang.org/docs/handbook/typescript-in-5-minutes.html)\r
-* [Programming handbook](https://www.typescriptlang.org/docs/handbook/basic-types.html)\r
+* [Programming handbook](https://www.typescriptlang.org/docs/handbook/intro.html)\r
* [Homepage](https://www.typescriptlang.org/)\r
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## Building\r