message: Add documentation for the image transform parameters
diff: @@ -458,6 +458,54 @@ Get file
  `GET /storage/o/<path-to-file>`
  +#### Image Transformation
  +
  +Transform images on-the-fly using query parameters. Cache headers are sent with the image for browsers to cache the image client-side.
  +
  +##### Example
  +
  +`/storage/o/<path-to-file>?w=800&q=90`
  +
  +##### Width
  +
  +Specify width in pixels of the image. If no height (`h`) is specified, the image automatically calculates the height to keep the image's aspect ratio. The value has to be between 0 and 8192.
  +
  +Query parameter: `w`.
  +
  +##### Height
  +
  +Specify the height of the image. If no width (`w`) is specified, the image automatically calculates the width to keep the image's aspect ratio. The value has to be between 0 and 8192.
  +
  +Query parameter: `h`.
  +
  +##### Quality
  +
  +Specify the quality of the image with a value between 1 (very course) to 100 (lossless or almost lossless).
  +
  +Query parameter: `q`.
  +
  +##### Format
  +
  +Specify the preferred format of the requested image.
  +
  +This parameter can be one of the following values: `webp`, `png`, `jpeg`, `auto`. When the value is `auto` the image will be transformed to the `webp` format if the request header explicitly accepts `image/webp`, otherwise the default format will be returned.
  +
  +Query parameter: `f`.
  +
  +##### Rounding
  +
  +Give the image rounded corners
  +
  +Query parameter: `r`.
  +
  +This parameter can be either an integer or `full` for when the image has to be fully rounded (e.g. an avatar).
  +
  +##### Blur
  +
  +Add a Gaussian blur to the image, the blur has to be between 0.3 and 1000.
  +
  +Query parameter: `b`.
  +
  #### Response
  ```
  