Updated the README.

README.md

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+# homebrew-webp
+
+A complete build of [libwebp](https://developers.google.com/speed/webp/docs/using), including all CLI tools.
+
+## Installation
+
+`brew install skyzyx/webp/webp-full`
+
+Or `brew tap skyzyx/webp` and then `brew install webp-full`.
+
+Or install via URL (which will not receive updates):
+
+```bash
+brew install https://raw.githubusercontent.com/skyzyx/homebrew-webp/master/Formula/webp-full.rb
+```
+
+## Support
+
+Includes the following binaries:
+
+| Binary | Description |
+| ------ | ----------- |
+| `cwebp` | Compress an image file to a WebP file. |
+| `dwebp` | Decompress a WebP file to a PNG, PAM, PPM, or PGM image file. |
+| `gif2webp` | Convert a GIF image to WebP (including animated ones). |
+| `img2webp` | Create animated WebP file from a sequence of input images. |
+| `vwebp` | Decompress a WebP file and display it in a window using OpenGL. |
+| `webpinfo` | Print out the chunk level structure of WebP files along with basic integrity checks. |
+| `webpmux` | Create animated WebP files from non-animated WebP images, extract frames from animated WebP images, and manage XMP/EXIF metadata and ICC profile. |
+
+## Documentation
+
+`brew help`, `man brew` or check [Homebrew's documentation](https://docs.brew.sh).