Add resize parameters to webp parameter table

[jaredchesebro]

Overview

Add resize parameters to webp image manipulation parameter table. This change is intended to provide clarity for those attempting to utilize the webp modifier.

Resolves #NN.

Nature of This Change

• [ ] 🐛 Fixes a bug
• [ ] 🚀 Implements a new feature
• [X] 🛁 Rewrites existing documentation
• [ ] 💅 Fixes coding style
• [ ] 🔥 Removes unused files / code