Removed statement that video elements are supported per #647 (#652)

docs/image-format.md

@@ -5,7 +5,7 @@ Support Format: **bmp, jpg, png, pbm**
 The main Tesseract.js functions (ex. recognize, detect) take an `image` parameter, which should be something that is like an image. What's considered "image-like" differs depending on whether it is being run from the browser or through NodeJS.
 
 On a browser, an image can be:
-- an `img`, `video`, or `canvas` element
+- an `img` or `canvas` element
 - a `File` object (from a file `<input>`)
 - a `Blob` object
 - a path or URL to an accessible image