refactor: rename testnet-1 into nemeton

Nemeton is the new codename of our testnet.

.github/ISSUE_TEMPLATE/register-validator.yml

@@ -15,7 +15,7 @@ body:
       description: Choose the OKP4 network you want to join
       multiple: false
       options:
-        - testnet-1
+        - nemeton
     validations:
       required: true
   - type: textarea

README.md

@@ -14,11 +14,11 @@ For a complete description about nodes and validators, check out the [OKP4 Docum
 
 ## 🔗 Networks
 
-### `testnet-1`
+### `nemeton`
 
 ![stability-stable](https://img.shields.io/badge/stability-stable-green.svg) ![audience](https://img.shields.io/badge/audience-public-white.svg)
 
-The first OKP4 testnet network, please find more details to join the network [here](chains/testnet-1/).
+`Nemeton` is the main OKP4 testnet. Please find more details to join the network [here](chains/nemeton/).
 
 ### `devnet-1`
 

chains/testnet-1/README.md → chains/nemeton/README.md

@@ -1,12 +1,12 @@
-# 🔗 `testnet-1`
+# 🔗 `nemeton`
 
 ## Register in the Genesis
 
-To register your validator node in the `genesis.json` you'll need to provide a signed `gentx` in a [⚖️ Register Validator issue](https://github.com/okp4/networks/issues).
+To register your validator node in the `genesis.json` you just need to provide a signed `gentx` in a [⚖️ Register Validator issue](https://github.com/okp4/networks/issues).
 
-You'll **not** need to fork the project and make the changes in the genesis yourself, this will be managed by the CI.
+You *don't* have to fork the project and make the changes in the genesis yourself. Everything will be managed by the CI!
 
-The gentx generation can be done as follow (this is an example script, adapt it to your needs) with the [okp4d](https://github.com/okp4/okp4d/releases) binary matching the [network's version](/chains/testnet-1/version.txt):
+The gentx generation can be done as follow (this is an example script, adapt it to your needs) with the [okp4d](https://github.com/okp4/okp4d/releases) binary matching the [network's version](/chains/nemeton/version.txt):
 
 ```sh
 # Init node
@@ -19,5 +19,5 @@ okp4d --home mynode keys add your-key-name
 okp4d --home mynode add-genesis-account your-key-name 1200000uknow
 
 # Create the gentx
-okp4d --home mynode gentx your-key-name 1000000uknow --node-id $(okp4d --home mynode tendermint show-node-id) --chain-id okp4-testnet-1
+okp4d --home mynode gentx your-key-name 1000000uknow --node-id $(okp4d --home mynode tendermint show-node-id) --chain-id okp4-nemeton
 ```

chains/testnet-1/genesis.json → chains/nemeton/genesis.json

@@ -1,6 +1,6 @@
 {
   "genesis_time": "2022-09-19T11:54:54.769429Z",
-  "chain_id": "okp4-testnet-1",
+  "chain_id": "okp4-nemeton-1",
   "initial_height": "1",
   "consensus_params": {
     "block": {