fixed duplication

Author: Vansh5632

src/content/guides/typescript.mdx

@@ -165,8 +165,6 @@ Note that if you're already using [`babel-loader`](https://github.com/babel/babe
 
 To learn more about source maps, see the [development guide](/guides/development).
 
-To learn more about source maps, see the [development guide](/guides/development).
-
 To enable source maps, we must configure TypeScript to output inline source maps to our compiled JavaScript files. The following line must be added to our TypeScript configuration:
 
 **tsconfig.json**