message: Add floaty rebuild instruction
diff: @@ -56,6 +56,12 @@ docker run --rm -v "$(pwd)":/code \
  --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
  cosmwasm/rust-optimizer:0.11.4 ./contracts/ibc-reflect \
  && cp artifacts/ibc_reflect.wasm packages/vm/testdata/ibc_reflect_0.15.wasm
  +
  +docker run --rm -v "$(pwd)":/code \
  + --mount type=volume,source="devcontract_cache_floaty",target=/code/contracts/floaty/target \
  + --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
  + cosmwasm/rust-optimizer:0.11.4 ./contracts/floaty \
  + && cp artifacts/floaty.wasm packages/vm/testdata/floaty.wasm
  ```
  ## Testing
  