message: Create introduction to the CosmWasm development contracts
diff: @@ -4,6 +4,39 @@ Those contracts are made for development purpose only. For more realistic
  example contracts, see
  [cosmwasm-examples](https://github.com/CosmWasm/cosmwasm-examples).
  +## The contracts
  +
  +Introducing the development contracts in the order they were created.
  +
  +1. **hackatom** is the very first development contract that was created at a
  + Cosmos Hackatom in Berlin in 2019, the event where CosmWasm was born. It is a
  + very basic escrow contract. During the years of CosmWasm development, many
  + more test cases were hacked into it.
  +2. **queue** shows and tests the newly added iterator support
  + ([#181](https://github.com/CosmWasm/cosmwasm/pull/181)).
  +3. **reflect** is an evolution of the
  + [mask contract](https://medium.com/cosmwasm/introducing-the-mask-41d11e51bccf),
  + which allows the user to send messages to the contract which are then emitted
  + with the contract as the sender. It later got support to handle sub messages
  + and replys ([#796](https://github.com/CosmWasm/cosmwasm/pull/796)).
  +4. **staking** is a staking derivates example showing how the contract itself
  + can be a delegator.
  +5. **burner** shows how contract migrations work, which were added in CosmWasm
  + 0.9 ([#413](https://github.com/CosmWasm/cosmwasm/pull/413)). It shuts down
  + the contract my clearing all state and sending all tokens to a given address.
  +6. **ibc-reflect**/**ibc-reflect-send** are inspired by the idea of Interchain
  + Accounts and demonstrate the power of contract to contract IBC.
  + ibc-reflect-send receives a message on chain A and sends it to an ibc-reflect
  + instance on chain B where the message is executed.
  +7. **crypto-verify** shows how to use the CosmWasm crypto APIs for signature
  + verification ([#783](https://github.com/CosmWasm/cosmwasm/pull/783)).
  +8. **floaty** emits float operations when compiled to Wasm and allows us to test
  + how tooling and the runtime deal with those operations
  + ([#970](https://github.com/CosmWasm/cosmwasm/pull/970)).
  +9. **cyberpunk** is an attempt to cleanup hackatom and make writing runtime
  + tests (cosmwasm-vm/wamsmvm) easier by avoid the need for the escrow setup
  + that hackatom has.
  +
  ## Optimized builds
  Those development contracts are used for testing in other repos, e.g. in
  