sprite example not working, main readme example not working.

The sprite example appears to not be fetching some dynamic libs it looking for:

~/Code/scratchwork/deno_sdl2/examples/sprite  deno run --unstable --allow-read --allow-net --allow-run --allow-env --allow-write  main.ts
Download target/debug/libdeno_sdl2.dylib
error: Uncaught (in promise) CacheError: /Users/andrew/Code/scratchwork/deno_sdl2/examples/sprite/target/debug/libdeno_sdl2.dylib is not valid.
    throw new CacheError(`${path} is not valid.`);
          ^
    at protocolFile (https://deno.land/x/cache@0.2.13/file_fetcher.ts:12:11)
    at async fetchFile (https://deno.land/x/cache@0.2.13/file_fetcher.ts:41:14)
    at async FileWrapper.fetch (https://deno.land/x/cache@0.2.13/file.ts:95:18)
    at async FileWrapper.get (https://deno.land/x/cache@0.2.13/file.ts:113:12)
    at async cache (https://deno.land/x/cache@0.2.13/cache.ts:67:10)
    at async Wrapper.cache (https://deno.land/x/cache@0.2.13/cache.ts:21:12)
    at async Module.prepare (https://deno.land/x/plug@0.4.0/plug.ts:75:16)
    at async file:///Users/andrew/Code/scratchwork/deno_sdl2/bindings/bindings.ts:11:14

it also is missing a few permissions in the readme (--allow-env --allow-write)

the main readme example has some incorrect type errors:

~/Code/scratchwork/deno_sdl2  deno run --unstable sample.ts
Check file:///Users/andrew/Code/scratchwork/deno_sdl2/sample.ts
error: TS2345 [ERROR]: Argument of type '{ title: string; width: number; height: number; }' is not assignable to parameter of type 'WindowOptions'.
  Type '{ title: string; width: number; height: number; }' is missing the following properties from type 'WindowOptions': flags, centered, fullscreen, hidden, and 3 more.
const canvas = new Canvas({ title: "Hello, Deno!", width: 800, height: 400 });
                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    at file:///Users/andrew/Code/scratchwork/deno_sdl2/sample.ts:3:27

it is also missing the --unstable flag

[andykais]

Ooo! Its working

Thanks @littledivy. It might be worth shoring up the readme with that change. Also the examples readme isnt quite accurate either (e.g. deno run --unstable -A main.ts from the examples/sprite folder doesnt work, but deno run --unstable -A examples/sprite/main.ts from the main folder does work).

Feel free to close this issue since my problem is solved, but it just might be worth fixing the readme before closing it

[littledivy]

@andykais I think something changed recently with Cargo features naming. _ in feature names do not map to -'s anymore. This should work: deno_bindgen -- --features "use-vcpkg"