docs(eslint-plugin): [explicit-module-boundary-types] fix broken link (…

…#2317)

Co-authored-by: Brad Zacher <brad.zacher@gmail.com>

packages/eslint-plugin/docs/rules/explicit-module-boundary-types.md

@@ -267,7 +267,7 @@ export const foo: FooType = bar => {};
 
 ## When Not To Use It
 
-If you wish to make sure all functions have explicit return types, as opposed to only the module boundaries, you can use [explicit-function-return-type](https://github.com/eslint/eslint/blob/master/docs/rules/explicit-function-return-type.md)
+If you wish to make sure all functions have explicit return types, as opposed to only the module boundaries, you can use [explicit-function-return-type](./explicit-function-return-type.md)
 
 ## Further Reading