Fix small typo (effects -> affects)
@@ -598,7 +598,7 @@ hint looks like this:
import * as foo from "./foo.js";
```
-Where the hint effects the next `import` statement (or `export ... from`
+Where the hint affects the next `import` statement (or `export ... from`
statement) where the value of the `@deno-types` will be substituted at compile
time instead of the specified module. Like in the above example, the Deno
compiler will load `./foo.d.ts` instead of `./foo.js`. Deno will still load
