Merge PR #4205: Mircea/update contributing md

* Update `CONTRIBUTING.md` branching strategy and release process

* Delete PRIORITIES.md

* Delete RELEASE_PROCESS.md

* Remove RELEASE_TEST_SCRIPT.md

* Update CONTRIBUTING.md

Co-Authored-By: mircea-c <mircea@tendermint.com>

docs/PRIORITIES.md

@@ -1,48 +0,0 @@
-# Post-0.25/GoS Pre-Release
-
-## Staking / Slashing - Stability
-
-- [Prelaunch Issues](https://github.com/cosmos/cosmos-sdk/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+label%3Astaking+label%3Aprelaunch-2.0)
-
-## Multisig
-
-- Need to test changes in https://github.com/cosmos/cosmos-sdk/pull/2165
-- Spam prevention - https://github.com/cosmos/cosmos-sdk/issues/2019
-
-## ABCI Changes
-
-- CheckEvidence/DeliverEvidence
-- CheckTx/DeliverTx ordering semantics
-- ABCI Error string update (only on the SDK side)
-- Need to verify correct proposer reward semantics
-
-## Gas
-
-- Write specification and explainer document for Gas in Cosmos
-  * Charge for transaction size
-  * Decide what "one gas" corresponds to (standard hardware benchmarks?)
-  * Consider charging based on maximum depth of IAVL tree iteration
-- Test out gas estimation in CLI and LCD and ensure the UX works
-
-## LCD
-
-- Bianje working with Voyager team (@fedekunze) to complete implementation and documentation.
-
-## Documentation
-
-- gaiad / gaiacli
-- LCD
-- Each module
-- Tags [#1780](https://github.com/cosmos/cosmos-sdk/issues/1780)
-# Lower priority
-
-- Create some diagrams (see `docs/resources/diagrams/todo.md`) 
-
-## Governance v2
-
-- Circuit breaker - https://github.com/cosmos/cosmos-sdk/issues/926
-- Parameter change proposals (roughly the same implementation as circuit breaker)
-
-## Staking / Slashing - Stability
-
-- Consider "tombstone" / "prison" - double-sign and you can never validate again - https://github.com/cosmos/cosmos-sdk/issues/2363

docs/RELEASE_PROCESS.md

@@ -1,13 +0,0 @@
-### `cosmos/cosmos-sdk` Release Process
-
-Unless otherwise stated, all of the following tasks will be undertaken by the release manager/coordinator:
-
-- [ ] 1. Decide on release designation (are we doing a patch, or minor version bump)
-- [ ] 2. Ensure that all commits/PRs which are destined for this release are merged to the `master` branch
-- [ ] 3. Create the release candidate branch `rcN` (please start with `N=1`) (going forward known as **RC**) and ensure it's protected against pushing from anyone except the release manager/coordinator. **no PRs targeting this branch should be merged unless exceptional circumstances arise**
-- [ ] 4. On the `RC` branch, use `clog` to prepare the `CHANGELOG.md`.
-- [ ] 5. Summarize breaking API changes section under “Breaking Changes” section to the `CHANGELOG.md` to bring attention to any breaking API changes that affect RPC consumers.
-- [ ] 6. Kick off a large round of simulation testing (e.g. 400 seeds for 2k blocks) 
-- [ ] 7. If errors are found in either #6 or #7 go back to #2 (*NOTE*: be sure to increment the `rcN`)
-- [ ] 8. After #6 and #7 have successfully completed create the release branch from the `RC` branch (this will trigger the automated relase process which will build binaries, tag the release and push to github)
-- [ ] 9. Merge the release branch to `master` and delete the `RC` branch

docs/RELEASE_TEST_SCRIPT.md

@@ -1,17 +0,0 @@
-This document should contain plain english instructions for testing functionality on `gaiad`. This “Script” is supposed to be run by 2 people who will each spin up a `gaiad` node and run the series of prompts below.
-
-- [Create a network of 2 nodes](./gaia/deploy-testnet.md)
-- [Generate an account](./gaia/gaiacli.md)
-- [Send funds from one account to the other](./gaia/gaiacli.md)
-- [Create a validator](./gaia/validators/validator-setup.md)
-- [Edit a validator](./gaia/alidators/validator-setup.md)
-- [Delegate to validator](./gaia/gaiacli.md)
-- [Unbond from a validator](./gaia/gaiacli.md)
-- [View validators and verify output](./gaia/validators/validator-setup.md)
-- [Query network status](./gaia/join-testnet.md#run-a-full-node)
-- [Create a proposal](./gaia/validators/validator-setup.md)
-- [Query a proposal](./gaia/validators/validator-setup.md)
-- [Vote on a proposal](./gaia/validators/validator-setup.md)
-- [Query status of a proposal](./gaia/validators/validator-setup.md)
-- [Query the votes on a proposal](./gaia/validators/validator-setup.md)
-- [Export state and reload](./gaia/join-testnet.md)