upscaler-docs.md

## Help Command
```
PS C:\Users\Pawin\Software\real-esrgan> ./realesrgan-ncnn-vulkan.exe
Usage: realesrgan-ncnn-vulkan -i infile -o outfile [options]...

  -h                   show this help
  -i input-path        input image path (jpg/png/webp) or directory
  -o output-path       output image path (jpg/png/webp) or directory
  -s scale             upscale ratio (can be 2, 3, 4. default=4)
  -t tile-size         tile size (>=32/0=auto, default=0) can be 0,0,0 for multi-gpu
  -m model-path        folder path to the pre-trained models. default=models
  -n model-name        model name (default=realesr-animevideov3, can be realesr-animevideov3 | realesrgan-x4plus | realesrgan-x4plus-anime | realesrnet-x4plus)
  -g gpu-id            gpu device to use (default=auto) can be 0,1,2 for multi-gpu
  -j load:proc:save    thread count for load/proc/save (default=1:2:2) can be 1:2,2,2:2 for multi-gpu
  -x                   enable tta mode
  -f format            output image format (jpg/png/webp, default=ext/png)
  -v                   verbose output
```

## STDOUT Output
```
[0 Intel(R) HD Graphics 520]  queueC=0[1]  queueG=0[1]  queueT=0[1]
[0 Intel(R) HD Graphics 520]  bugsbn1=0  bugbilz=209  bugcopc=0  bugihfa=0
[0 Intel(R) HD Graphics 520]  fp16-p/s/a=1/1/1  int8-p/s/a=1/1/1
[0 Intel(R) HD Graphics 520]  subgroup=32  basic=1  vote=1  ballot=1  shuffle=1
0.00%
input.png -> output.png done
```