[update]: refactored README for interactivity and readability

Updated the readme for interactivity (copying the commands) and readability (gradual process view).

simapp/README.md

@@ -1,47 +1,110 @@
-# simapp
-
-simapp is an application built using the Cosmos SDK for testing and educational purposes.
-
-## Running testnets with `simd`
-
-If you want to spin up a quick testnet with your friends, you can follow these steps.
-Unless otherwise noted, every step must be done by everyone who wants to participate
-in this testnet.
-
-1. `$ make build`. This will build the `simd` binary and install it in your Cosmos SDK repo,
-    inside a new `build` directory. The following instructions are run from inside
-    that directory.
-2. If you've run `simd` before, you may need to reset your database before starting a new
-    testnet: `$ ./simd unsafe-reset-all`
-3. `$ ./simd init [moniker]`. This will initialize a new working directory, by default at
-    `~/.simapp`. You need a provide a "moniker," but it doesn't matter what it is.
-4. `$ ./simd keys add [key_name]`. This will create a new key, with a name of your choosing.
-    Save the output of this command somewhere; you'll need the address generated here later.
-5. `$ ./simd add-genesis-account  $(simd keys show [key_name] -a) [amount]`, where `key_name`
-    is the same key name as before; and `amount` is something like `10000000000000000000000000stake`.
-6. `$ ./simd gentx [key_name] [amount] --chain-id [chain-id]`. This will create the
-    genesis transaction for your new chain.
-7. Now, one person needs to create the genesis file `genesis.json` using the genesis transactions
-   from every participant, by gathering all the genesis transactions under `config/gentx` and then
-   calling `./simd collect-gentxs`. This will create a new `genesis.json` file that includes data
-   from all the validators (we sometimes call it the "super genesis file" to distinguish it from
-   single-validator genesis files).
-8. Once you've received the super genesis file, overwrite your original `genesis.json` file with
-    the new super `genesis.json`.
-9. Modify your `config/config.toml` (in the simapp working directory) to include the other participants as
-    persistent peers:
-
-    ```text
-    # Comma separated list of nodes to keep persistent connections to
-    persistent_peers = "[validator address]@[ip address]:[port],[validator address]@[ip address]:[port]"
-    ```
-
-    You can find `validator address` by running `./simd tendermint show-node-id`. (It will be hex-encoded.)
-    By default, `port` is 26656.
-10. Now you can start your nodes: `$ ./simd start`.
-
-Now you have a small testnet that you can use to try out changes to the Cosmos SDK or Tendermint!
-
-NOTE: Sometimes creating the network through the `collect-gentxs` will fail, and validators will start
-in a funny state (and then panic). If this happens, you can try to create and start the network first
-with a single validator and then add additional validators using a `create-validator` transaction.
+# `SimApp`
+
+`SimApp` is a CLI application built using the Cosmos SDK for testing and educational purposes.
+
+## Running Testnets with `simd`
+
+Want to spin up a quick testnet with your friends? Follow these steps. Unless stated otherwise, all participants in the testnet must follow through with each step.
+
+### 1. Download and Setup
+
+Download the Cosmos SDK and unzip it. You can do this manually (via the GitHub UI) or with the git clone command:
+
+```sh
+git clone github.com/cosmos/cosmos-sdk.git
+```
+
+Next, run this command to build the `simd` binary in the `build` directory:
+
+```sh
+make build
+```
+
+Use the following command and skip all the next steps to configure your SimApp node:
+
+```sh
+make init-simapp
+```
+
+If you've run `simd` in the past, you may need to reset your database before starting up a new testnet. You can do that with this command:
+
+```sh
+# you need to provide the moniker and chain ID
+$ ./simd init [moniker] --chain-id [chain-id]
+```
+
+The command should initialize a new working directory at the `~simapp` location. 
+The `moniker` and `chain-id` can be anything, but you must use the same `chain-id` subsequently.
+
+### 2. Create a New Key
+
+Execute this command to create a new key:
+
+```sh
+ ./simd keys add [key_name]
+```
+
+⚠️ The command will create a new key with your chosen name.
+Save the output somewhere safe; you'll need the address later.
+
+### 3. Add Genesis Account
+
+Add a genesis account to your testnet blockchain:
+
+```sh
+$ ./simd genesis add-genesis-account [key_name] [amount]
+```
+
+Where `key_name` is the same key name as before, and the `amount` is something like `10000000000000000000000000stake`.
+
+### 4. Add the Genesis Transaction
+
+This creates the genesis transaction for your testnet chain:
+
+```sh
+$ ./simd genesis gentx [key_name] [amount] --chain-id [chain-id]
+```
+
+The amount should be at least `1000000000stake`. Providing too much or too little may result in errors when you start your node.
+
+### 5. Create the Genesis File
+
+A participant must create the genesis file `genesis.json` with every participant's transaction. 
+You can do this by gathering all the Genesis transactions under `config/gentx` and then executing this command:
+
+```sh
+$ ./simd genesis collect-gentxs
+```
+
+The command will create a new `genesis.json` file that includes data from all the validators. We sometimes call this the "super genesis file" to distinguish it from single-validator genesis files.
+
+Once you've received the super genesis file, overwrite your original `genesis.json` file with the new super `genesis.json`.
+
+Modify your `config/config.toml` (in the simapp working directory) to include the other participants as persistent peers:
+
+```
+# Comma-separated list of nodes to keep persistent connections to
+persistent_peers = "[validator_address]@[ip_address]:[port],[validator_address]@[ip_address]:[port]"
+```
+
+You can find `validator_address` by executing:
+
+```sh
+$ ./simd comet show-node-id
+```
+
+The output will be the hex-encoded `validator_address`. The default `port` is 26656.
+
+### 6. Start the Nodes
+
+Finally, execute this command to start your nodes:
+
+```sh
+$ ./simd start
+```
+
+Now you have a small testnet that you can use to try out changes to the Cosmos SDK or CometBFT!
+
+> ⚠️ NOTE: Sometimes, creating the network through the `collect-gentxs` will fail, and validators will start in a funny state (and then panic).
+> 
+> If this happens, you can try to create and start the network first with a single validator and then add additional validators using a `create-validator` transaction.