Fix docker command
This will work with podman but not with docker.
@@ -45,7 +45,7 @@ solang flipper.sol
Alternatively if you want to use the solang docker image, run:
```
-docker run --rm -it -v .:/sources hyperledgerlabs/solang -v -o /sources /sources/flipper.sol
+docker run --rm -it -v $(pwd):/sources hyperledgerlabs/solang -v -o /sources /sources/flipper.sol
```
You will have a flipper.wasm and flipper.json. You can use these directly in
the [Polkadot UI](https://substrate.dev/substrate-contracts-workshop/#/0/deploying-your-contract?id=putting-your-code-on-the-blockchain), as if your smart
