Update README

README.md

@@ -18,3 +18,38 @@ account, specifying the parameters for a normal solana transaction.
 To sign, owners should invoke the `approve` instruction, and finally,
 the `execute_transaction`, once enough (i.e. `threhsold`) of the owners have
 signed.
+
+## Note
+
+* **This code is unaudited. Use at your own risk.**
+
+## Developing
+
+[Anchor](https://github.com/project-serum/anchor) is used for developoment, and it's
+recommended workflow is used here. To get started, see the [guide](https://project-serum.github.io/anchor/getting-started/introduction.html).
+
+### Build
+
+```bash
+anchor build --verifiable
+```
+
+The `--verifiable` flag should be used before deploying so that your build artifacts
+can be deterministically generated with docker.
+
+### Test
+
+```bash
+anchor test
+```
+
+### Verify
+
+To verify the program deployed on Solana matches your local source code, install
+docker, `cd programs/multisig`, and run
+
+```bash
+anchor verify <program-id | write-buffer>
+```
+
+A list of build artifacts can be found under [releases](https://github.com/project-serum/multisig/releases).