Mention rpc port on beaconkit tut and put port in evm-contract tut (#425)

* Mention rpc port on beaconkit tut and put port in evm-contract tut

* Rephrase

* Fix missing constants import

Author: yarikbratashchuk

tutorials/beaconkit.md

@@ -1,5 +1,10 @@
 # Building a Sovereign Rollup with BeaconKit and Rollkit
 
+<!-- markdownlint-disable MD033 -->
+<script setup>
+import constants from '../.vitepress/constants/constants.js'
+</script>
+
 ![beaconkit](https://camo.githubusercontent.com/8aaae79e171969a2a9c950582d512cd1e3746e67d3aea6410afc04e9b6cb8055/68747470733a2f2f7265732e636c6f7564696e6172792e636f6d2f6475763067343032792f696d6167652f75706c6f61642f76313731383033343331322f426561636f6e4b697442616e6e65722e706e67)
 
 ## Introduction
@@ -22,7 +27,7 @@ Before you begin, ensure you have the following software installed on your machi
 
 First, set up a local data availability network node:
 
-```bash
+```bash-vue
 cd $HOME && curl -sSL https://rollkit.dev/install-local-da.sh | sh -s {{constants.localDALatestTag}}
 ```
 
@@ -47,6 +52,8 @@ cd $HOME/beacon-kit
 make start-geth
 ```
 
+Notice within logs indicating that your Geth client is running the RPC server is listening on port `8545`. You will need that port to deploy and interact with smart contracts on the BeaconKit EVM.
+
 ## Build and run the BeaconKit node {#build-and-run-beaconkit-node}
 
 Open a new terminal and run:

tutorials/evm-contract-interaction.md

@@ -37,7 +37,7 @@ Export the funded private key and RPC URL:
 
 ```bash
 export PRIVATE_KEY=0xfffdbb37105441e14b0ee6330d855d8504ff39e705c3afa8f859ac9865f99306
-export RPC_URL=<rpc url>
+export RPC_URL=http://localhost:8545 // or for Octane EVM the port is 8000
 ```
 
 Use Foundry to deploy the contract to your EVM: