Developer quickstart: Bridge

The quickstart contains sections for a contract and a frontend but does not contain a guide for the bridge.

If a user has not engaged in defi or bridging then the interface may not be intuitive for them even if it is relatively standardized across projects and thus generally understood to be simple enough to understand.

We ought to add a step-by-step process of how to bridge and what the components in the user interface represent such as choosing a network (which box it's in), the coins, value, time to bridge, wallet pop up confirmations etc.