Add helper scripts for deployments on osmosis and instructions (#852)

DEV_GUIDELINES.md

@@ -19,3 +19,19 @@ tbd
 In order to balance tracking of our progress and speed of development we use the following rules for unplanned works that gets identified during a sprint:
 * fix takes less than 1h and you address it immediately: no ticket required
 * fix takes more than 1h or you don't address it immediately: create a ticket
+
+## Releases
+
+### Smart contracts
+The following steps are required to release smart contracts:
+1. Create a new release:
+    * Make sure you have the latest state: `git checkout main && git pull`
+    * Create a tag: `git tag -a "<TAG>" -m"<DESCRIPTION>"` (TAG should be of the form v[0-9]+.[0-9]+.[0-9]+)
+    * Push tag: `git push origin <TAG>`
+2. Upload code through multisig (This can only be done by the multisig-members, please sync with them):
+    * Create signed message: `bash scripts/generate_signed_upload_tx.sh <WASM_FILE> <DEPLOYER> <MULTISIG>`, where <DEPLOYER> and <MULTISIG> are the names of your key, resp. the multisig key, registered with `osmosisd`.
+    * Collect signed messages from coworkers, when you have enough: `bash scripts/upload_through_multisig.sh "<SIGNED_TX_1> <SIGNED_TX_2>"`
+3. Create proposal to instantiate or migrate contracts on [DAODAO](https://daodao.zone/dao/osmo12ry93err6s2ekg02ekslucwx8n3pxm3y7zxz3l6w8zuhex984k5ss4ltl6/proposals).
+4. After the proposal did receive enough votes, it can be executed.
+5. Please make sure that all instances of a contract are migrated. You can find a list of contracts [here](smart-contracts/contracts.json). The easiest way to propose the migration of all contracts in that list is by adjusting `scripts/propose_cl_vault_migration` and executing `node scripts/propose_cl_vault_migration.js` from the repo root directory. 
+6. Update versions and deployment dates in the list of contracts. This can be done with the help of `scripts/update_contracts_list.js`.